Flow price: --
b9bac7f96d897581d4294416e3e88e6a192fb8ceaab4981a6314c4c2855fe643

Transaction

Hash: b9bac7f96d897581d4294416e3e88e6a192fb8ceaab4981a6314c4c2855fe643
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> b9bac7f96d897581d4294416e3e88e6a192fb8ceaab4981a6314c4c2855fe643:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
b9bac7f96d897581d4294416e3e88e6a192fb8ceaab4981a6314c4c2855fe643
Status:
ERROR
Block height:
40103281
Block id:
d5b4135224c7808edddafc0ffd2432312ffa911ae70ea167a573b30b19ce1a33
Timestamp:
Tuesday 1 November 2022 at 11:15:07 UTC
()
Proposer:
Authorizers:
Gas used:
45