QA Report

[code423n4]

Low Risk

Tasks assigned with a cost of 1 USDC will always revert

https://github.com/code-423n4/2022-08-rigor/blob/main/contracts/Project.sol#L903-L911

Since USDC has 6 decimals, 1 cent is equivalent to 0.01 * 1e6 = 1e4, which makes the calculation be equal to zero.

Missing zero address check

https://github.com/code-423n4/2022-08-rigor/blob/main/contracts/HomeFi.sol#L200

Non-critical

Non-view function marked under external view comment

https://github.com/code-423n4/2022-08-rigor/blob/main/contracts/ProjectFactory.sol#L78

Typos

https://github.com/code-423n4/2022-08-rigor/blob/main/contracts/Project.sol#L514
https://github.com/code-423n4/2022-08-rigor/blob/main/contracts/Project.sol#L520

Unnecessary uint256() casting

https://github.com/code-423n4/2022-08-rigor/blob/main/contracts/Project.sol#L200

Function returns a value which is never assigned

https://github.com/code-423n4/2022-08-rigor/blob/main/contracts/HomeFi.sol#L225

Community number zero is never assigned

This happens because the community count is increased before _communities[communityCount] is called.

https://github.com/code-423n4/2022-08-rigor/blob/main/contracts/Community.sol#L140

[zgorizzo69]

thanks for your work good call for the check precision