https://github.com/code-423n4/2023-10-party/blob/b23c65d62a20921c709582b0b76b387f2bb9ebb5/contracts/signature-validators/OffChainSignatureValidator.sol#L71
Whenever an OffChainSignatureValidator is configured with a non-zero signing threshold for the party (thresholdBps > 0), but the party has not started yet (totalVotingPower == 0), the following calculation in isValidSignature may revert for division by zero:
Consider re-formulating the operation in a way that would always work:
