Flow price: --
7cdc303ccc9b23dad17ad4c53fa2566a5ed88e8093a6bb63d36ff04d6f36d5f5

Transaction

Hash: 7cdc303ccc9b23dad17ad4c53fa2566a5ed88e8093a6bb63d36ff04d6f36d5f5
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 7cdc303ccc9b23dad17ad4c53fa2566a5ed88e8093a6bb63d36ff04d6f36d5f5:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
7cdc303ccc9b23dad17ad4c53fa2566a5ed88e8093a6bb63d36ff04d6f36d5f5
Status:
ERROR
Block height:
40042835
Block id:
9a38c0a978e887408be8ada46aae7f258cf514422181acbd6b49ba0db7026236
Timestamp:
Monday 31 October 2022 at 10:52:58 UTC
()
Proposer:
Authorizers:
Gas used:
49