Flow price: --
cd5423d58d7ffe16bbf42e412731e2cf462fb764f316acda7c00fe7187fff172

Transaction

Hash: cd5423d58d7ffe16bbf42e412731e2cf462fb764f316acda7c00fe7187fff172
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> cd5423d58d7ffe16bbf42e412731e2cf462fb764f316acda7c00fe7187fff172:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
cd5423d58d7ffe16bbf42e412731e2cf462fb764f316acda7c00fe7187fff172
Status:
ERROR
Block height:
40164753
Block id:
4615846e058fe251a0b53a3c1d1ee316e3e18d10f1cd54115f144c3b8a388e3a
Timestamp:
Wednesday 2 November 2022 at 12:13:50 UTC
()
Proposer:
Authorizers:
Gas used:
46