Flow price: --
f59d5731497c4d781a6835eb1c5cc07f6b2f41e576f120ab9b16e4c8b408b510

Transaction

Hash: f59d5731497c4d781a6835eb1c5cc07f6b2f41e576f120ab9b16e4c8b408b510
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> f59d5731497c4d781a6835eb1c5cc07f6b2f41e576f120ab9b16e4c8b408b510:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
f59d5731497c4d781a6835eb1c5cc07f6b2f41e576f120ab9b16e4c8b408b510
Status:
ERROR
Block height:
39934632
Block id:
2f5efa450664da19c430568b1c0f9d642e1cdc4f2ff0bb0a0ab0f75fa848a70b
Timestamp:
Saturday 29 October 2022 at 15:41:40 UTC
()
Proposer:
Authorizers:
Gas used:
43