Flow price: --
72ec25c3ebb133e771b18a21dd52f8d879f30b7d23f9239188dde6e686eeffdc

Transaction

Hash: 72ec25c3ebb133e771b18a21dd52f8d879f30b7d23f9239188dde6e686eeffdc
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 72ec25c3ebb133e771b18a21dd52f8d879f30b7d23f9239188dde6e686eeffdc: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:
72ec25c3ebb133e771b18a21dd52f8d879f30b7d23f9239188dde6e686eeffdc
Status:
ERROR
Block height:
39888327
Block id:
e2bc64dddc68b12230b978787cf7674f984ebe9297ce7ebb2a725527fb7a2443
Timestamp:
Friday 28 October 2022 at 21:08:15 UTC
()
Proposer:
Authorizers:
Gas used:
46