Flow price: --
1bcb9a494e2e85374ca5687d5b0e7d7fbbd12cdcb9bfa4c4f5f53b3cb1608203

Transaction

Hash: 1bcb9a494e2e85374ca5687d5b0e7d7fbbd12cdcb9bfa4c4f5f53b3cb1608203
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 1bcb9a494e2e85374ca5687d5b0e7d7fbbd12cdcb9bfa4c4f5f53b3cb1608203:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
1bcb9a494e2e85374ca5687d5b0e7d7fbbd12cdcb9bfa4c4f5f53b3cb1608203
Status:
ERROR
Block height:
39985974
Block id:
9b2610a4066a22b73a4842c83ed98ccaf9c3e171eeb162da492a7af993ddd7b3
Timestamp:
Sunday 30 October 2022 at 12:09:16 UTC
()
Proposer:
Authorizers:
Gas used:
50