Flow price: --
f4a5ef60fa6d243ec81f4136db1354609f555b4f1258a6c5b811b4b9a2f0951c

Transaction

Hash: f4a5ef60fa6d243ec81f4136db1354609f555b4f1258a6c5b811b4b9a2f0951c
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> f4a5ef60fa6d243ec81f4136db1354609f555b4f1258a6c5b811b4b9a2f0951c: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:
f4a5ef60fa6d243ec81f4136db1354609f555b4f1258a6c5b811b4b9a2f0951c
Status:
ERROR
Block height:
39860541
Block id:
1c0a41f8ad123696c5f4cf05027e1445a8b86700099edf9ebc6beba17450f77f
Timestamp:
Friday 28 October 2022 at 10:01:35 UTC
()
Proposer:
Authorizers:
Gas used:
64