[BUG] pydantic.error_wrappers.ValidationError

[HaosGames]

Describe the bug I get the following Error after updating to 0.12.6. It get's spammed every 5 seconds in the log

Mai 24 11:54:37 benno lnbits[2485199]: 2024-05-24 11:54:37.37 | ERROR | exception in background task `unnamed`:
Mai 24 11:54:37 benno lnbits[2485199]: 2024-05-24 11:54:37.37 | ERROR | pydantic.error_wrappers.ValidationError: 1 validation error for Proof
Mai 24 11:54:37 benno lnbits[2485199]: Y
Mai 24 11:54:37 benno lnbits[2485199]:   none is not an allowed value (type=type_error.none.not_allowed)
Mai 24 11:54:37 benno lnbits[2485199]: 2024-05-24 11:54:37.37 | ERROR | will restart the task in 5 seconds.

To Reproduce Update from 0.12.5 to 0.12.6 and run clightning v24.02.2 backend.

Expected behavior No Error

• LNbits version: 0.12.6
• Database sqlite,