Flow price: --
89c1cdd3d16818e32bf63a87d1bb8dc9ea99ca3a588142f213950a4cb5402377

Transaction

Hash: 89c1cdd3d16818e32bf63a87d1bb8dc9ea99ca3a588142f213950a4cb5402377
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 89c1cdd3d16818e32bf63a87d1bb8dc9ea99ca3a588142f213950a4cb5402377:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
89c1cdd3d16818e32bf63a87d1bb8dc9ea99ca3a588142f213950a4cb5402377
Status:
ERROR
Block height:
39967941
Block id:
e601c33c56cc5ed45cdd448d50a515ef7bcc8c6bc8d56c9deb7ec369671814f3
Timestamp:
Sunday 30 October 2022 at 04:55:46 UTC
()
Proposer:
Authorizers:
Gas used:
50