AA32 Paymaster expired or not due

The paymaster's signature is outside of the specified time range and has expired.

Possible Solutions

1. If you are using Alchemy's Gas Manager, make sure you are sending the userOp within the sponsorship expiry period specified in your Gas Manager policy.
2. If you are using another paymaster service, contact them.
3. If you are running your own paymaster and using time-based signatures, check that the validAfter and validUntil fields are correct and the userOp is sent within the specified range.
4. If you are running your own paymaster and don't use time-based signatures, check that the validAfter and validUntil fields are set to 0.