Flow price: --
9a1694be73a8ec52c85008467703bb69c58826d49843e4dbf78a7a58e7eaf901

Transaction

Hash: 9a1694be73a8ec52c85008467703bb69c58826d49843e4dbf78a7a58e7eaf901
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 9a1694be73a8ec52c85008467703bb69c58826d49843e4dbf78a7a58e7eaf901:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
9a1694be73a8ec52c85008467703bb69c58826d49843e4dbf78a7a58e7eaf901
Status:
ERROR
Block height:
39936720
Block id:
fcc474a40510a274f7a3669881464464c02b7e9bbeb3d9be5bbcf06f924576ea
Timestamp:
Saturday 29 October 2022 at 16:32:46 UTC
()
Proposer:
Authorizers:
Gas used:
46