MFT [Metaface] Token

MetafaceToken.addLiquidity(uint256,uint256) (#1077-1090) sends eth to arbitrary user
Dangerous calls:
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1082-1089)
Ensure that an arbitrary user cannot withdraw unauthorized funds.

Additional information: link

Reentrancy in MetafaceToken._transfer(address,address,uint256) (#981-1014):
External calls:
- swapTokensForEthToFee(contractTokenBalance.mul(_marketingFee).div(total),marketingWallet) (#1005)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1025-1031)
- address(wallet).call{value: newBalance}() (#1033)
- swapTokensForEthToFee(contractTokenBalance.mul(_autoLiqFee).div(total),autoLiqContract) (#1006)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1025-1031)
- address(wallet).call{value: newBalance}() (#1033)
- swapAndLiquify(contractTokenBalance.mul(_liquidityFee).div(total)) (#1008)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1082-1089)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1068-1074)
External calls sending eth:
- swapTokensForEthToFee(contractTokenBalance.mul(_marketingFee).div(total),marketingWallet) (#1005)
- address(wallet).call{value: newBalance}() (#1033)
- swapTokensForEthToFee(contractTokenBalance.mul(_autoLiqFee).div(total),autoLiqContract) (#1006)
- address(wallet).call{value: newBalance}() (#1033)
- swapAndLiquify(contractTokenBalance.mul(_liquidityFee).div(total)) (#1008)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1082-1089)
State variables written after the call(s):
- _tokenTransfer(from,to,amount) (#1013)
- _autoLiqFee = _previousAutoLiqFee (#966)
- _autoLiqFee = 0 (#959)
- _tokenTransfer(from,to,amount) (#1013)
- _liquidityFee = _previousLiquidityFee (#964)
- _liquidityFee = 0 (#956)
- _tokenTransfer(from,to,amount) (#1013)
- _marketingFee = _previousmarketingFee (#965)
- _marketingFee = 0 (#957)
- _tokenTransfer(from,to,amount) (#1013)
- _rOwned[address(this)] = _rOwned[address(this)].add(rLiquidity) (#931)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#1172)
- _rOwned[address(this)] = _rOwned[address(this)].add(rMarketing) (#1131)
- _rOwned[address(this)] = _rOwned[address(this)].add(rAutoLiq) (#1147)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#1183)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#872)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#1174)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#1184)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#1159)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#1160)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#874)
- _tokenTransfer(from,to,amount) (#1013)
- _rTotal = _rTotal.sub(rFee) (#886)
- _tokenTransfer(from,to,amount) (#1013)
- _tOwned[address(this)] = _tOwned[address(this)].add(tLiquidity) (#933)
- _tOwned[sender] = _tOwned[sender].sub(tAmount) (#1182)
- _tOwned[sender] = _tOwned[sender].sub(tAmount) (#871)
- _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount) (#1173)
- _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount) (#873)
- _tOwned[address(this)] = _tOwned[address(this)].add(tMarketing) (#1133)
- _tOwned[address(this)] = _tOwned[address(this)].add(tAutoLiq) (#1149)
- swapping = false (#1009)
Apply the check-effects-interactions pattern.

Additional information: link

MetafaceToken.inSwapAndLiquify (#727) is never initialized. It is used in:
- MetafaceToken._transfer(address,address,uint256) (#981-1014)
Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.

Additional information: link

Unable to verify that contract auditor is trusted: Certik, Quantstamp, Hacken, Solidity, Paladinsec, Openzeppelin, Verichains

Combination 1: Reentrancy vulnerabilities + Functions that send Ether to arbitraty destination. Usual for scams. May be justified by some complex mechanics (e.g. rebase, reflections). DYOR & manual audit are advised.

Low level call in Address.sendValue(address,uint256) (#295-301):
- (success) = recipient.call{value: amount}() (#299)
Low level call in Address._functionCallWithValue(address,bytes,uint256,string) (#361-382):
- (success,returndata) = target.call{value: weiValue}(data) (#365)
Low level call in MetafaceToken.swapTokensForEthToFee(uint256,address) (#1016-1034):
- address(wallet).call{value: newBalance}() (#1033)
Avoid low-level calls. Check the call success. If the call is meant for a contract, check for code existence

Additional information: link

MetafaceToken.includeInReward(address) (#856-867) has costly operations inside a loop:
- _excluded.pop() (#863)
Use a local variable to hold the loop computation result.

Additional information: link

MetafaceToken.takeMarketing(address,uint256,uint256,uint256) (#1123-1136) performs a multiplication on the result of a division:
-tMarketing = tAmount.div(100).mul(_marketingFee) (#1127)
MetafaceToken.takeAutoLiq(address,uint256,uint256,uint256) (#1139-1152) performs a multiplication on the result of a division:
-tAutoLiq = tAmount.div(100).mul(_autoLiqFee) (#1143)
Consider ordering multiplication before division.

Additional information: link

MetafaceToken.swapTokensForEthToFee(uint256,address) (#1016-1034) ignores return value by address(wallet).call{value: newBalance}() (#1033)
Ensure that the return value of a low-level call is checked or logged.

Additional information: link

MetafaceToken.addLiquidity(uint256,uint256) (#1077-1090) ignores return value by uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1082-1089)
Ensure that all the return values of the function calls are used.

Additional information: link

MetafaceToken.allowance(address,address).owner (#788) shadows:
- Ownable.owner() (#416-418) (function)
MetafaceToken._approve(address,address,uint256).owner (#973) shadows:
- Ownable.owner() (#416-418) (function)
Rename the local variables that shadow another component.

Additional information: link

MetafaceToken.setTaxFeePercent(uint256) (#1229-1231) should emit an event for:
- _taxFee = taxFee (#1230)
MetafaceToken.setLiquidityFeePercent(uint256) (#1233-1235) should emit an event for:
- _liquidityFee = liquidityFee (#1234)
MetafaceToken.setChartityFeePercent(uint256) (#1237-1239) should emit an event for:
- _marketingFee = marketingFee (#1238)
MetafaceToken.setAutoLiqFeePercent(uint256) (#1241-1244) should emit an event for:
- _autoLiqFee = autoLiqFee (#1243)
MetafaceToken.setNumTokensSellToAddToLiquidity(uint256,uint256) (#1247-1249) should emit an event for:
- numTokensSellToAddToLiquidity = newAmt * 10 ** decimal (#1248)
MetafaceToken.setMaxTxAmount(uint256,uint256) (#1251-1254) should emit an event for:
- _maxTxAmount = maxTxAmount * 10 ** decimal (#1253)
Emit an event for critical parameter changes.

Additional information: link

MetafaceToken.setmarketingWallet(address).newWallet (#1224) lacks a zero-check on :
- marketingWallet = newWallet (#1225)
Check that the address is not zero.

Additional information: link

Reentrancy in MetafaceToken._transfer(address,address,uint256) (#981-1014):
External calls:
- swapTokensForEthToFee(contractTokenBalance.mul(_marketingFee).div(total),marketingWallet) (#1005)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1025-1031)
- address(wallet).call{value: newBalance}() (#1033)
- swapTokensForEthToFee(contractTokenBalance.mul(_autoLiqFee).div(total),autoLiqContract) (#1006)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1025-1031)
- address(wallet).call{value: newBalance}() (#1033)
External calls sending eth:
- swapTokensForEthToFee(contractTokenBalance.mul(_marketingFee).div(total),marketingWallet) (#1005)
- address(wallet).call{value: newBalance}() (#1033)
- swapTokensForEthToFee(contractTokenBalance.mul(_autoLiqFee).div(total),autoLiqContract) (#1006)
- address(wallet).call{value: newBalance}() (#1033)
State variables written after the call(s):
- swapTokensForEthToFee(contractTokenBalance.mul(_autoLiqFee).div(total),autoLiqContract) (#1006)
- _allowances[owner][spender] = amount (#977)
Reentrancy in MetafaceToken._transfer(address,address,uint256) (#981-1014):
External calls:
- swapTokensForEthToFee(contractTokenBalance.mul(_marketingFee).div(total),marketingWallet) (#1005)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1025-1031)
- address(wallet).call{value: newBalance}() (#1033)
- swapTokensForEthToFee(contractTokenBalance.mul(_autoLiqFee).div(total),autoLiqContract) (#1006)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1025-1031)
- address(wallet).call{value: newBalance}() (#1033)
- swapAndLiquify(contractTokenBalance.mul(_liquidityFee).div(total)) (#1008)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1082-1089)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1068-1074)
External calls sending eth:
- swapTokensForEthToFee(contractTokenBalance.mul(_marketingFee).div(total),marketingWallet) (#1005)
- address(wallet).call{value: newBalance}() (#1033)
- swapTokensForEthToFee(contractTokenBalance.mul(_autoLiqFee).div(total),autoLiqContract) (#1006)
- address(wallet).call{value: newBalance}() (#1033)
- swapAndLiquify(contractTokenBalance.mul(_liquidityFee).div(total)) (#1008)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1082-1089)
State variables written after the call(s):
- swapAndLiquify(contractTokenBalance.mul(_liquidityFee).div(total)) (#1008)
- _allowances[owner][spender] = amount (#977)
- _tokenTransfer(from,to,amount) (#1013)
- _previousAutoLiqFee = _autoLiqFee (#954)
- _tokenTransfer(from,to,amount) (#1013)
- _previousLiquidityFee = _liquidityFee (#952)
- _tokenTransfer(from,to,amount) (#1013)
- _previousTaxFee = _taxFee (#951)
- _tokenTransfer(from,to,amount) (#1013)
- _previousmarketingFee = _marketingFee (#953)
- _tokenTransfer(from,to,amount) (#1013)
- _tFeeTotal = _tFeeTotal.add(tFee) (#887)
- _tokenTransfer(from,to,amount) (#1013)
- _taxFee = _previousTaxFee (#963)
- _taxFee = 0 (#955)
Reentrancy in MetafaceToken.constructor() (#743-760):
External calls:
- uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this),_uniswapV2Router.WETH()) (#749-750)
State variables written after the call(s):
- _isExcludedFromFee[owner()] = true (#756)
- _isExcludedFromFee[address(this)] = true (#757)
- uniswapV2Router = _uniswapV2Router (#753)
Reentrancy in MetafaceToken.setRouterAddress(address) (#1258-1262):
External calls:
- uniswapV2Pair = IUniswapV2Factory(_newPancakeRouter.factory()).createPair(address(this),_newPancakeRouter.WETH()) (#1260)
State variables written after the call(s):
- uniswapV2Router = _newPancakeRouter (#1261)
Reentrancy in MetafaceToken.swapAndLiquify(uint256) (#1036-1057):
External calls:
- swapTokensForEth(half) (#1048)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1068-1074)
- addLiquidity(otherHalf,newBalance) (#1054)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1082-1089)
External calls sending eth:
- addLiquidity(otherHalf,newBalance) (#1054)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1082-1089)
State variables written after the call(s):
- addLiquidity(otherHalf,newBalance) (#1054)
- _allowances[owner][spender] = amount (#977)
Reentrancy in MetafaceToken.transferFrom(address,address,uint256) (#797-801):
External calls:
- _transfer(sender,recipient,amount) (#798)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1082-1089)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1068-1074)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1025-1031)
- address(wallet).call{value: newBalance}() (#1033)
External calls sending eth:
- _transfer(sender,recipient,amount) (#798)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1082-1089)
- address(wallet).call{value: newBalance}() (#1033)
State variables written after the call(s):
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (#799)
- _allowances[owner][spender] = amount (#977)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in MetafaceToken._transfer(address,address,uint256) (#981-1014):
External calls:
- swapTokensForEthToFee(contractTokenBalance.mul(_marketingFee).div(total),marketingWallet) (#1005)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1025-1031)
- address(wallet).call{value: newBalance}() (#1033)
- swapTokensForEthToFee(contractTokenBalance.mul(_autoLiqFee).div(total),autoLiqContract) (#1006)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1025-1031)
- address(wallet).call{value: newBalance}() (#1033)
External calls sending eth:
- swapTokensForEthToFee(contractTokenBalance.mul(_marketingFee).div(total),marketingWallet) (#1005)
- address(wallet).call{value: newBalance}() (#1033)
- swapTokensForEthToFee(contractTokenBalance.mul(_autoLiqFee).div(total),autoLiqContract) (#1006)
- address(wallet).call{value: newBalance}() (#1033)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#978)
- swapTokensForEthToFee(contractTokenBalance.mul(_autoLiqFee).div(total),autoLiqContract) (#1006)
Reentrancy in MetafaceToken._transfer(address,address,uint256) (#981-1014):
External calls:
- swapTokensForEthToFee(contractTokenBalance.mul(_marketingFee).div(total),marketingWallet) (#1005)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1025-1031)
- address(wallet).call{value: newBalance}() (#1033)
- swapTokensForEthToFee(contractTokenBalance.mul(_autoLiqFee).div(total),autoLiqContract) (#1006)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1025-1031)
- address(wallet).call{value: newBalance}() (#1033)
- swapAndLiquify(contractTokenBalance.mul(_liquidityFee).div(total)) (#1008)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1082-1089)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1068-1074)
External calls sending eth:
- swapTokensForEthToFee(contractTokenBalance.mul(_marketingFee).div(total),marketingWallet) (#1005)
- address(wallet).call{value: newBalance}() (#1033)
- swapTokensForEthToFee(contractTokenBalance.mul(_autoLiqFee).div(total),autoLiqContract) (#1006)
- address(wallet).call{value: newBalance}() (#1033)
- swapAndLiquify(contractTokenBalance.mul(_liquidityFee).div(total)) (#1008)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1082-1089)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#978)
- swapAndLiquify(contractTokenBalance.mul(_liquidityFee).div(total)) (#1008)
- SwapAndLiquify(half,newBalance,otherHalf) (#1056)
- swapAndLiquify(contractTokenBalance.mul(_liquidityFee).div(total)) (#1008)
- Transfer(sender,recipient,tTransferAmount) (#1177)
- _tokenTransfer(from,to,amount) (#1013)
- Transfer(sender,recipient,tTransferAmount) (#1187)
- _tokenTransfer(from,to,amount) (#1013)
- Transfer(sender,recipient,tTransferAmount) (#1163)
- _tokenTransfer(from,to,amount) (#1013)
- Transfer(sender,recipient,tTransferAmount) (#877)
- _tokenTransfer(from,to,amount) (#1013)
Reentrancy in MetafaceToken.constructor() (#743-760):
External calls:
- uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this),_uniswapV2Router.WETH()) (#749-750)
Event emitted after the call(s):
- Transfer(address(0),_msgSender(),_tTotal) (#759)
Reentrancy in MetafaceToken.swapAndLiquify(uint256) (#1036-1057):
External calls:
- swapTokensForEth(half) (#1048)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1068-1074)
- addLiquidity(otherHalf,newBalance) (#1054)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1082-1089)
External calls sending eth:
- addLiquidity(otherHalf,newBalance) (#1054)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1082-1089)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#978)
- addLiquidity(otherHalf,newBalance) (#1054)
- SwapAndLiquify(half,newBalance,otherHalf) (#1056)
Reentrancy in MetafaceToken.transferFrom(address,address,uint256) (#797-801):
External calls:
- _transfer(sender,recipient,amount) (#798)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1082-1089)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1068-1074)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1025-1031)
- address(wallet).call{value: newBalance}() (#1033)
External calls sending eth:
- _transfer(sender,recipient,amount) (#798)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1082-1089)
- address(wallet).call{value: newBalance}() (#1033)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#978)
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (#799)
Apply the check-effects-interactions pattern.

Additional information: link

Ownable.unlock() (#463-468) uses timestamp for comparisons
Dangerous comparisons:
- require(bool,string)(block.timestamp > _lockTime,Contract is locked until 7 days) (#465)
Avoid relying on block.timestamp.

Additional information: link

Address.isContract(address) (#268-277) uses assembly
- INLINE ASM (#275)
Address._functionCallWithValue(address,bytes,uint256,string) (#361-382) uses assembly
- INLINE ASM (#374-377)
Do not use evm assembly.

Additional information: link

Address._functionCallWithValue(address,bytes,uint256,string) (#361-382) is never used and should be removed
Address.functionCall(address,bytes) (#321-323) is never used and should be removed
Address.functionCall(address,bytes,string) (#331-333) is never used and should be removed
Address.functionCallWithValue(address,bytes,uint256) (#346-348) is never used and should be removed
Address.functionCallWithValue(address,bytes,uint256,string) (#356-359) is never used and should be removed
Address.isContract(address) (#268-277) is never used and should be removed
Address.sendValue(address,uint256) (#295-301) is never used and should be removed
Context._msgData() (#240-243) is never used and should be removed
SafeMath.mod(uint256,uint256) (#213-215) is never used and should be removed
SafeMath.mod(uint256,uint256,string) (#229-232) is never used and should be removed
Remove unused functions.

Additional information: link

MetafaceToken._rTotal (#698) is set pre-construction with a non-constant function or state variable:
- (MAX - (MAX % _tTotal))
MetafaceToken._previousAutoLiqFee (#712) is set pre-construction with a non-constant function or state variable:
- _autoLiqFee
MetafaceToken._previousTaxFee (#713) is set pre-construction with a non-constant function or state variable:
- _taxFee
MetafaceToken._previousLiquidityFee (#714) is set pre-construction with a non-constant function or state variable:
- _liquidityFee
MetafaceToken._previousmarketingFee (#715) is set pre-construction with a non-constant function or state variable:
- _marketingFee
Remove any initialization of state variables via non-constant state variables or function calls. If variables must be set upon contract deployment, locate initialization in the constructor instead.

Additional information: link

Function IUniswapV2Pair.DOMAIN_SEPARATOR() (#507) is not in mixedCase
Function IUniswapV2Pair.PERMIT_TYPEHASH() (#508) is not in mixedCase
Function IUniswapV2Pair.MINIMUM_LIQUIDITY() (#524) is not in mixedCase
Function IUniswapV2Router01.WETH() (#545) is not in mixedCase
Parameter MetafaceToken.calculateTaxFee(uint256)._amount (#936) is not in mixedCase
Parameter MetafaceToken.calculateLiquidityFee(uint256)._amount (#942) is not in mixedCase
Parameter MetafaceToken.setSwapAndLiquifyEnabled(bool)._enabled (#1264) is not in mixedCase
Variable MetafaceToken._taxFee (#708) is not in mixedCase
Variable MetafaceToken._liquidityFee (#709) is not in mixedCase
Variable MetafaceToken._marketingFee (#710) is not in mixedCase
Variable MetafaceToken._maxTxAmount (#731) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

Redundant expression "this (#241)" inContext (#235-244)
Remove redundant statements if they congest code but offer no value.

Additional information: link

Variable IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountADesired (#550) is too similar to IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountBDesired (#551)
Variable MetafaceToken.takeAutoLiq(address,uint256,uint256,uint256).rTransferAmount (#1139) is too similar to MetafaceToken._transferToExcluded(address,address,uint256).tTransferAmount (#1171)
Variable MetafaceToken._transferFromExcluded(address,address,uint256).rTransferAmount (#1181) is too similar to MetafaceToken._getValues(uint256).tTransferAmount (#891)
Variable MetafaceToken.takeAutoLiq(address,uint256,uint256,uint256).rTransferAmount (#1139) is too similar to MetafaceToken._transferFromExcluded(address,address,uint256).tTransferAmount (#1181)
Variable MetafaceToken._transferBothExcluded(address,address,uint256).rTransferAmount (#870) is too similar to MetafaceToken._transferStandard(address,address,uint256).tTransferAmount (#1156)
Variable MetafaceToken.takeAutoLiq(address,uint256,uint256,uint256).rTransferAmount (#1139) is too similar to MetafaceToken._transferStandard(address,address,uint256).tTransferAmount (#1156)
Variable MetafaceToken._transferToExcluded(address,address,uint256).rTransferAmount (#1171) is too similar to MetafaceToken._getValues(uint256).tTransferAmount (#891)
Variable MetafaceToken.takeMarketing(address,uint256,uint256,uint256).rTransferAmount (#1123) is too similar to MetafaceToken.takeAutoLiq(address,uint256,uint256,uint256).tTransferAmount (#1139)
Variable MetafaceToken.reflectionFromToken(uint256,bool).rTransferAmount (#836) is too similar to MetafaceToken._getValues(uint256).tTransferAmount (#891)
Variable MetafaceToken._transferFromExcluded(address,address,uint256).rTransferAmount (#1181) is too similar to MetafaceToken._transferBothExcluded(address,address,uint256).tTransferAmount (#870)
Variable MetafaceToken._getRValues(uint256,uint256,uint256,uint256).rTransferAmount (#907) is too similar to MetafaceToken._transferToExcluded(address,address,uint256).tTransferAmount (#1171)
Variable MetafaceToken.takeMarketing(address,uint256,uint256,uint256).rTransferAmount (#1123) is too similar to MetafaceToken._transferBothExcluded(address,address,uint256).tTransferAmount (#870)
Variable MetafaceToken.takeMarketing(address,uint256,uint256,uint256).rTransferAmount (#1123) is too similar to MetafaceToken._getTValues(uint256).tTransferAmount (#899)
Variable MetafaceToken.reflectionFromToken(uint256,bool).rTransferAmount (#836) is too similar to MetafaceToken.takeAutoLiq(address,uint256,uint256,uint256).tTransferAmount (#1139)
Variable MetafaceToken._getRValues(uint256,uint256,uint256,uint256).rTransferAmount (#907) is too similar to MetafaceToken._transferFromExcluded(address,address,uint256).tTransferAmount (#1181)
Variable MetafaceToken._getRValues(uint256,uint256,uint256,uint256).rTransferAmount (#907) is too similar to MetafaceToken._transferStandard(address,address,uint256).tTransferAmount (#1156)
Variable MetafaceToken.takeAutoLiq(address,uint256,uint256,uint256).rTransferAmount (#1139) is too similar to MetafaceToken._getValues(uint256).tTransferAmount (#891)
Variable MetafaceToken._transferBothExcluded(address,address,uint256).rTransferAmount (#870) is too similar to MetafaceToken._getValues(uint256).tTransferAmount (#891)
Variable MetafaceToken._transferToExcluded(address,address,uint256).rTransferAmount (#1171) is too similar to MetafaceToken._transferBothExcluded(address,address,uint256).tTransferAmount (#870)
Variable MetafaceToken.reflectionFromToken(uint256,bool).rTransferAmount (#836) is too similar to MetafaceToken._getTValues(uint256).tTransferAmount (#899)
Variable MetafaceToken.reflectionFromToken(uint256,bool).rTransferAmount (#836) is too similar to MetafaceToken._transferBothExcluded(address,address,uint256).tTransferAmount (#870)
Variable MetafaceToken._getRValues(uint256,uint256,uint256,uint256).rTransferAmount (#907) is too similar to MetafaceToken._transferBothExcluded(address,address,uint256).tTransferAmount (#870)
Variable MetafaceToken._transferFromExcluded(address,address,uint256).rTransferAmount (#1181) is too similar to MetafaceToken._transferToExcluded(address,address,uint256).tTransferAmount (#1171)
Variable MetafaceToken.takeMarketing(address,uint256,uint256,uint256).rTransferAmount (#1123) is too similar to MetafaceToken._transferToExcluded(address,address,uint256).tTransferAmount (#1171)
Variable MetafaceToken._getRValues(uint256,uint256,uint256,uint256).rTransferAmount (#907) is too similar to MetafaceToken._getValues(uint256).tTransferAmount (#891)
Variable MetafaceToken._transferFromExcluded(address,address,uint256).rTransferAmount (#1181) is too similar to MetafaceToken._transferFromExcluded(address,address,uint256).tTransferAmount (#1181)
Variable MetafaceToken._transferBothExcluded(address,address,uint256).rTransferAmount (#870) is too similar to MetafaceToken._transferBothExcluded(address,address,uint256).tTransferAmount (#870)
Variable MetafaceToken.takeAutoLiq(address,uint256,uint256,uint256).rTransferAmount (#1139) is too similar to MetafaceToken._transferBothExcluded(address,address,uint256).tTransferAmount (#870)
Variable MetafaceToken._transferFromExcluded(address,address,uint256).rTransferAmount (#1181) is too similar to MetafaceToken._transferStandard(address,address,uint256).tTransferAmount (#1156)
Variable MetafaceToken.takeMarketing(address,uint256,uint256,uint256).rTransferAmount (#1123) is too similar to MetafaceToken._transferFromExcluded(address,address,uint256).tTransferAmount (#1181)
Variable MetafaceToken.takeMarketing(address,uint256,uint256,uint256).rTransferAmount (#1123) is too similar to MetafaceToken._transferStandard(address,address,uint256).tTransferAmount (#1156)
Variable MetafaceToken._transferToExcluded(address,address,uint256).rTransferAmount (#1171) is too similar to MetafaceToken._transferToExcluded(address,address,uint256).tTransferAmount (#1171)
Variable MetafaceToken._getValues(uint256).rTransferAmount (#892) is too similar to MetafaceToken._transferStandard(address,address,uint256).tTransferAmount (#1156)
Variable MetafaceToken.reflectionFromToken(uint256,bool).rTransferAmount (#836) is too similar to MetafaceToken._transferToExcluded(address,address,uint256).tTransferAmount (#1171)
Variable MetafaceToken.reflectionFromToken(uint256,bool).rTransferAmount (#836) is too similar to MetafaceToken._transferFromExcluded(address,address,uint256).tTransferAmount (#1181)
Variable MetafaceToken._transferToExcluded(address,address,uint256).rTransferAmount (#1171) is too similar to MetafaceToken._transferFromExcluded(address,address,uint256).tTransferAmount (#1181)
Variable MetafaceToken._transferToExcluded(address,address,uint256).rTransferAmount (#1171) is too similar to MetafaceToken._transferStandard(address,address,uint256).tTransferAmount (#1156)
Variable MetafaceToken._transferStandard(address,address,uint256).rTransferAmount (#1156) is too similar to MetafaceToken._transferStandard(address,address,uint256).tTransferAmount (#1156)
Variable MetafaceToken.reflectionFromToken(uint256,bool).rTransferAmount (#836) is too similar to MetafaceToken._transferStandard(address,address,uint256).tTransferAmount (#1156)
Variable MetafaceToken.reflectionFromToken(uint256,bool).rTransferAmount (#836) is too similar to MetafaceToken.takeMarketing(address,uint256,uint256,uint256).tTransferAmount (#1123)
Variable MetafaceToken.takeMarketing(address,uint256,uint256,uint256).rTransferAmount (#1123) is too similar to MetafaceToken._getValues(uint256).tTransferAmount (#891)
Variable MetafaceToken._transferBothExcluded(address,address,uint256).rTransferAmount (#870) is too similar to MetafaceToken.takeAutoLiq(address,uint256,uint256,uint256).tTransferAmount (#1139)
Variable MetafaceToken._getValues(uint256).rTransferAmount (#892) is too similar to MetafaceToken._transferBothExcluded(address,address,uint256).tTransferAmount (#870)
Variable MetafaceToken._transferStandard(address,address,uint256).rTransferAmount (#1156) is too similar to MetafaceToken.takeMarketing(address,uint256,uint256,uint256).tTransferAmount (#1123)
Variable MetafaceToken._transferFromExcluded(address,address,uint256).rTransferAmount (#1181) is too similar to MetafaceToken.takeMarketing(address,uint256,uint256,uint256).tTransferAmount (#1123)
Variable MetafaceToken._transferStandard(address,address,uint256).rTransferAmount (#1156) is too similar to MetafaceToken._getValues(uint256).tTransferAmount (#891)
Variable MetafaceToken.takeAutoLiq(address,uint256,uint256,uint256).rTransferAmount (#1139) is too similar to MetafaceToken.takeAutoLiq(address,uint256,uint256,uint256).tTransferAmount (#1139)
Variable MetafaceToken._transferStandard(address,address,uint256).rTransferAmount (#1156) is too similar to MetafaceToken._transferToExcluded(address,address,uint256).tTransferAmount (#1171)
Variable MetafaceToken._transferStandard(address,address,uint256).rTransferAmount (#1156) is too similar to MetafaceToken._transferBothExcluded(address,address,uint256).tTransferAmount (#870)
Variable MetafaceToken._getValues(uint256).rTransferAmount (#892) is too similar to MetafaceToken.takeAutoLiq(address,uint256,uint256,uint256).tTransferAmount (#1139)
Variable MetafaceToken._getRValues(uint256,uint256,uint256,uint256).rTransferAmount (#907) is too similar to MetafaceToken._getTValues(uint256).tTransferAmount (#899)
Variable MetafaceToken.takeMarketing(address,uint256,uint256,uint256).rTransferAmount (#1123) is too similar to MetafaceToken.takeMarketing(address,uint256,uint256,uint256).tTransferAmount (#1123)
Variable MetafaceToken._transferToExcluded(address,address,uint256).rTransferAmount (#1171) is too similar to MetafaceToken.takeAutoLiq(address,uint256,uint256,uint256).tTransferAmount (#1139)
Variable MetafaceToken._transferBothExcluded(address,address,uint256).rTransferAmount (#870) is too similar to MetafaceToken._transferFromExcluded(address,address,uint256).tTransferAmount (#1181)
Variable MetafaceToken._transferBothExcluded(address,address,uint256).rTransferAmount (#870) is too similar to MetafaceToken._getTValues(uint256).tTransferAmount (#899)
Variable MetafaceToken._transferFromExcluded(address,address,uint256).rTransferAmount (#1181) is too similar to MetafaceToken.takeAutoLiq(address,uint256,uint256,uint256).tTransferAmount (#1139)
Variable MetafaceToken._getRValues(uint256,uint256,uint256,uint256).rTransferAmount (#907) is too similar to MetafaceToken.takeMarketing(address,uint256,uint256,uint256).tTransferAmount (#1123)
Variable MetafaceToken._transferStandard(address,address,uint256).rTransferAmount (#1156) is too similar to MetafaceToken.takeAutoLiq(address,uint256,uint256,uint256).tTransferAmount (#1139)
Variable MetafaceToken.takeAutoLiq(address,uint256,uint256,uint256).rTransferAmount (#1139) is too similar to MetafaceToken._getTValues(uint256).tTransferAmount (#899)
Variable MetafaceToken._getValues(uint256).rTransferAmount (#892) is too similar to MetafaceToken._transferFromExcluded(address,address,uint256).tTransferAmount (#1181)
Variable MetafaceToken._transferBothExcluded(address,address,uint256).rTransferAmount (#870) is too similar to MetafaceToken.takeMarketing(address,uint256,uint256,uint256).tTransferAmount (#1123)
Variable MetafaceToken._getValues(uint256).rTransferAmount (#892) is too similar to MetafaceToken._getTValues(uint256).tTransferAmount (#899)
Variable MetafaceToken.takeAutoLiq(address,uint256,uint256,uint256).rTransferAmount (#1139) is too similar to MetafaceToken.takeMarketing(address,uint256,uint256,uint256).tTransferAmount (#1123)
Variable MetafaceToken._transferToExcluded(address,address,uint256).rTransferAmount (#1171) is too similar to MetafaceToken._getTValues(uint256).tTransferAmount (#899)
Variable MetafaceToken._transferBothExcluded(address,address,uint256).rTransferAmount (#870) is too similar to MetafaceToken._transferToExcluded(address,address,uint256).tTransferAmount (#1171)
Variable MetafaceToken._transferStandard(address,address,uint256).rTransferAmount (#1156) is too similar to MetafaceToken._transferFromExcluded(address,address,uint256).tTransferAmount (#1181)
Variable MetafaceToken._getValues(uint256).rTransferAmount (#892) is too similar to MetafaceToken.takeMarketing(address,uint256,uint256,uint256).tTransferAmount (#1123)
Variable MetafaceToken._transferStandard(address,address,uint256).rTransferAmount (#1156) is too similar to MetafaceToken._getTValues(uint256).tTransferAmount (#899)
Variable MetafaceToken._transferFromExcluded(address,address,uint256).rTransferAmount (#1181) is too similar to MetafaceToken._getTValues(uint256).tTransferAmount (#899)
Variable MetafaceToken._getValues(uint256).rTransferAmount (#892) is too similar to MetafaceToken._getValues(uint256).tTransferAmount (#891)
Variable MetafaceToken._getRValues(uint256,uint256,uint256,uint256).rTransferAmount (#907) is too similar to MetafaceToken.takeAutoLiq(address,uint256,uint256,uint256).tTransferAmount (#1139)
Variable MetafaceToken._transferToExcluded(address,address,uint256).rTransferAmount (#1171) is too similar to MetafaceToken.takeMarketing(address,uint256,uint256,uint256).tTransferAmount (#1123)
Variable MetafaceToken._getValues(uint256).rTransferAmount (#892) is too similar to MetafaceToken._transferToExcluded(address,address,uint256).tTransferAmount (#1171)
Prevent variables from having similar names.

Additional information: link

MetafaceToken.prepareFoePresale() (#1190-1201) uses literals with too many digits:
- _maxTxAmount = 1000000000000000000000 * 10 ** 18 (#1199)
MetafaceToken.afterPresale() (#1203-1214) uses literals with too many digits:
- _maxTxAmount = 10000000000000000000000 * 10 ** 18 (#1212)
MetafaceToken.slitherConstructorVariables() (#683-1270) uses literals with too many digits:
- _tTotal = 100000000000 * 10 ** 18 (#697)
MetafaceToken.slitherConstructorVariables() (#683-1270) uses literals with too many digits:
- deadAddress = 0x000000000000000000000000000000000000dEaD (#718)
MetafaceToken.slitherConstructorVariables() (#683-1270) uses literals with too many digits:
- numTokensSellToAddToLiquidity = 5000000 * 10 ** 18 (#730)
MetafaceToken.slitherConstructorVariables() (#683-1270) uses literals with too many digits:
- _maxTxAmount = 100000000000 * 10 ** 18 (#731)
Use: Ether suffix, Time suffix, or The scientific notation

Additional information: link

MetafaceToken._decimals (#703) should be constant
MetafaceToken._name (#701) should be constant
MetafaceToken._symbol (#702) should be constant
MetafaceToken._tTotal (#697) should be constant
MetafaceToken.autoLiqContract (#721) should be constant
MetafaceToken.deadAddress (#718) should be constant
MetafaceToken.inSwapAndLiquify (#727) should be constant
Add the constant attributes to state variables that never change.

Additional information: link

renounceOwnership() should be declared external:
- Ownable.renounceOwnership() (#435-438)
transferOwnership(address) should be declared external:
- Ownable.transferOwnership(address) (#444-448)
geUnlockTime() should be declared external:
- Ownable.geUnlockTime() (#450-452)
lock(uint256) should be declared external:
- Ownable.lock(uint256) (#455-460)
unlock() should be declared external:
- Ownable.unlock() (#463-468)
name() should be declared external:
- MetafaceToken.name() (#762-764)
symbol() should be declared external:
- MetafaceToken.symbol() (#766-768)
decimals() should be declared external:
- MetafaceToken.decimals() (#770-772)
totalSupply() should be declared external:
- MetafaceToken.totalSupply() (#774-776)
transfer(address,uint256) should be declared external:
- MetafaceToken.transfer(address,uint256) (#783-786)
allowance(address,address) should be declared external:
- MetafaceToken.allowance(address,address) (#788-790)
approve(address,uint256) should be declared external:
- MetafaceToken.approve(address,uint256) (#792-795)
transferFrom(address,address,uint256) should be declared external:
- MetafaceToken.transferFrom(address,address,uint256) (#797-801)
increaseAllowance(address,uint256) should be declared external:
- MetafaceToken.increaseAllowance(address,uint256) (#803-806)
decreaseAllowance(address,uint256) should be declared external:
- MetafaceToken.decreaseAllowance(address,uint256) (#808-811)
isExcludedFromReward(address) should be declared external:
- MetafaceToken.isExcludedFromReward(address) (#813-815)
totalFees() should be declared external:
- MetafaceToken.totalFees() (#817-819)
deliver(uint256) should be declared external:
- MetafaceToken.deliver(uint256) (#821-828)
reflectionFromToken(uint256,bool) should be declared external:
- MetafaceToken.reflectionFromToken(uint256,bool) (#830-839)
excludeFromReward(address) should be declared external:
- MetafaceToken.excludeFromReward(address) (#847-854)
isExcludedFromFee(address) should be declared external:
- MetafaceToken.isExcludedFromFee(address) (#969-971)
excludeFromFee(address) should be declared external:
- MetafaceToken.excludeFromFee(address) (#1216-1218)
includeInFee(address) should be declared external:
- MetafaceToken.includeInFee(address) (#1220-1222)
setRouterAddress(address) should be declared external:
- MetafaceToken.setRouterAddress(address) (#1258-1262)
Use the external attribute for functions never called from the contract.

Additional information: link

Contract has 13% buy tax and 10% sell tax.
Taxes are high (over 10%) but contract ownership is renounced.

Swap operations require suspiciously high gas. Contract logic is complex and may disguise some form of scam.

Token is deployed only at one blockchain

Unable to find PancakeSwap trading pair to compute liquidity.

Unable to find PancakeSwap trading pair to compute number of swaps.

BscScan page for the token does not contain additional info: website, socials, description, etc.

Additional information: link

Unable to find token on CoinHunt

Additional information: link

Unable to find code repository for the project

Young tokens have high risks of price dump / death

Young tokens have high risks of scam / price dump / death

Young tokens have high risks of price dump / death

Young tokens have high risks of price dump / death

Young tokens have high risks of price dump / death

Token has relatively low CoinGecko rank

Token has relatively low CoinMarketCap rank