NEXX [NEXX COIN] Token

Unable to find manual contract audit (e.g. Certik, PeckShield, Solidity...)

Token.change_fees_stable(uint256) (#64-77) contains a tautology or contradiction:
- value < 0 (#71)
Token.change_fees_member(uint256) (#79-91) contains a tautology or contradiction:
- value < 0 (#85)
Fix the incorrect comparison by changing the value type or the comparison.

Additional information: link

Token.transferFrom(address,address,uint256) (#137-151) compares to a boolean constant:
-fees_activ == true (#141)
Token.transfer(address,uint256) (#122-135) compares to a boolean constant:
-fees_activ == true (#125)
Remove the equality to the boolean constant.

Additional information: link

Token.fees_calculate(address,uint256) (#99-120) performs a multiplication on the result of a division:
-fees_stable_quantity = (value / 100) * fees_stable (#104)
Token.fees_calculate(address,uint256) (#99-120) performs a multiplication on the result of a division:
-fees_member_quantity = (value / 100) * fees_member (#111)
Consider ordering multiplication before division.

Additional information: link

Pragma version^0.8.2 (#2) allows old versions
solc-0.8.2 is not recommended for deployment
Deploy with any of the following Solidity versions: 0.5.16 - 0.5.17, 0.6.11 - 0.6.12, 0.7.5 - 0.7.6 Use a simple pragma version that allows any of these versions. Consider using the latest version of Solidity for testing.

Additional information: link

Token.symbol (#9) should be constant
Token.name (#8) should be constant
Token.decimals (#10) should be constant
Add the constant attributes to state variables that never change.

Additional information: link

Function Token.change_member(address) (#58-62) is not in mixedCase
Variable Token.fees_member (#16) is not in mixedCase
Variable Token.fees_stable (#15) is not in mixedCase
Parameter Token.change_admin(address).new_admin (#46) is not in mixedCase
Variable Token.fees_activ (#18) is not in mixedCase
Function Token.change_fees_active(bool) (#93-97) is not in mixedCase
Function Token.fees_calculate(address,uint256) (#99-120) is not in mixedCase
Function Token.change_admin(address) (#46-50) is not in mixedCase
Function Token.change_fees_stable(uint256) (#64-77) is not in mixedCase
Parameter Token.change_stable(address).new_stable (#52) is not in mixedCase
Function Token.change_stable(address) (#52-56) is not in mixedCase
Parameter Token.change_member(address).new_member (#58) is not in mixedCase
Function Token.change_fees_member(uint256) (#79-91) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

change_admin(address) should be declared external:
- Token.change_admin(address) (#46-50)
change_fees_active(bool) should be declared external:
- Token.change_fees_active(bool) (#93-97)
burn(uint256) should be declared external:
- Token.burn(uint256) (#35-44)
change_stable(address) should be declared external:
- Token.change_stable(address) (#52-56)
approve(address,uint256) should be declared external:
- Token.approve(address,uint256) (#153-157)
change_member(address) should be declared external:
- Token.change_member(address) (#58-62)
Use the external attribute for functions never called from the contract.

Additional information: link

Token.change_member(address).new_member (#58) lacks a zero-check on :
- member = new_member (#60)
Token.change_admin(address).new_admin (#46) lacks a zero-check on :
- admin = new_admin (#48)
Token.change_stable(address).new_stable (#52) lacks a zero-check on :
- stable = new_stable (#54)
Check that the address is not zero.

Additional information: link

Token.change_fees_member(uint256) (#79-91) should emit an event for:
- fees_member = value (#89)
Token.change_fees_stable(uint256) (#64-77) should emit an event for:
- fees_stable = value (#75)
Emit an event for critical parameter changes.

Additional information: link

Attempt to swap token was unsuccessful. For some reason it is untradeable. If token is not in presale stage and is not traded outside PancakeSwap, then it's a scam

Additional information: link

Contract has 0% buy tax and 100% sell tax.
Taxes are extremely high (over 30%)

Additional information: link

Average 30d PancakeSwap liquidity is less than $100. Token is either dead or inactive.

Average 30d PancakeSwap volume is less than $100. Token is either dead or inactive.

Average 30d number of PancakeSwap swaps is less than 1. Token is either dead or inactive.

Average PancakeSwap trading volume, liqudity, number of swaps are extremely low. Token seems to be dead.

Token is deployed only at one blockchain

Token has only one trading pair

Unable to find website, listings and other project-related information

Token is marked as scam (rug pull, honeypot, phishing, etc.)

Additional information: link

Token has a considerable age, but we're still unable to find its website

Token has no active CoinGecko listing / rank

Token has no active CoinMarketCap listing / rank

Token has a considerable age, but social accounts / website are missing or have few users

Token has a considerable age, but average PancakeSwap 30d trading volume is low