Flow price: --
643741f3c044cf75f964fd77d52014503d63aed3e6badc4c5bfc4758efecf5be

Transaction

Hash: 643741f3c044cf75f964fd77d52014503d63aed3e6badc4c5bfc4758efecf5be
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 643741f3c044cf75f964fd77d52014503d63aed3e6badc4c5bfc4758efecf5be: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:
643741f3c044cf75f964fd77d52014503d63aed3e6badc4c5bfc4758efecf5be
Status:
ERROR
Block height:
39916992
Block id:
0f8b23992c3ab0d236c1d4f6320a8c507dc48bc6dc4b2934f70ee6ae832a988e
Timestamp:
Saturday 29 October 2022 at 08:34:21 UTC
()
Proposer:
Authorizers:
Gas used:
47