Flow price: --
5540b1a3bf12bd19507ebc1668a0fa8e40f9502ce5afc32ed8e7d02fc1617517

Transaction

Hash: 5540b1a3bf12bd19507ebc1668a0fa8e40f9502ce5afc32ed8e7d02fc1617517
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 5540b1a3bf12bd19507ebc1668a0fa8e40f9502ce5afc32ed8e7d02fc1617517:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
5540b1a3bf12bd19507ebc1668a0fa8e40f9502ce5afc32ed8e7d02fc1617517
Status:
ERROR
Block height:
39817777
Block id:
0faba26e2d52ee24ecc4cc232d5748fc426fc89f74ecf4723fc8a908b9ddc85a
Timestamp:
Thursday 27 October 2022 at 16:45:51 UTC
()
Proposer:
Authorizers:
Gas used:
47