Flow price: --
929a70b9af70a3b9d8cbe8ce76abac944fc0593bb2c72f8c9c8fb764d63b7dd9

Transaction

Hash: 929a70b9af70a3b9d8cbe8ce76abac944fc0593bb2c72f8c9c8fb764d63b7dd9
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 929a70b9af70a3b9d8cbe8ce76abac944fc0593bb2c72f8c9c8fb764d63b7dd9:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
929a70b9af70a3b9d8cbe8ce76abac944fc0593bb2c72f8c9c8fb764d63b7dd9
Status:
ERROR
Block height:
40163017
Block id:
047dc2bfc78411601c613f5d2930e67ce211b89ad7836c098a0df22742a8a46b
Timestamp:
Wednesday 2 November 2022 at 11:31:52 UTC
()
Proposer:
Authorizers:
Gas used:
50