Allstars Audit

The functions which are never called internally within the contract should have external visibility for gas optimization. ```solidity=15 function burn(uint256 amount) public onlyOwner { ``` --- ```solidity=41 function token() public view returns (IERC20) { ``` --- ```solidity=45 function getScheduledTokens() public view returns (uint256) { ``` --- ```solidity=53 function getRound(uint256 roundId) ``` --- ```solidity=71 function getRoundPrice(uint256 roundId, address paymentToken) public view returns (uint256) { ``` --- ```solidity=76 function getRoundEarnings(uint256 roundId, address paymentToken) public view returns (uint256) { ``` --- ```solidity=81 function getReleasableTokens(uint256 roundId) public view returns (uint256) { ```

There should always be events emitted in the sensitive functions that are controlled by centralization roles.

The contract has unlocked compiler version. An unlocked compiler version in the source code of the contract permits the user to compile it at or above a particular version. This, in turn, leads to differences in the generated bytecode between compilations due to differing compiler version numbers. This can lead to an ambiguity when debugging as compiler specific bugs may occur in the codebase that would be hard to identify over a span of multiple compiler versions rather than a specific one.