Flow price: --
b581a3a08dbfe234eac8722dc3e2592a76b5a3da02d89e9f733c00af6a52beab

Transaction

Hash: b581a3a08dbfe234eac8722dc3e2592a76b5a3da02d89e9f733c00af6a52beab
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> b581a3a08dbfe234eac8722dc3e2592a76b5a3da02d89e9f733c00af6a52beab:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
b581a3a08dbfe234eac8722dc3e2592a76b5a3da02d89e9f733c00af6a52beab
Status:
ERROR
Block height:
40119956
Block id:
cb1afa747d4071f1091e98023de3687627f4d8df5e49b204087bc51f75a5615b
Timestamp:
Tuesday 1 November 2022 at 18:00:10 UTC
()
Proposer:
Authorizers:
Gas used:
50