Flow price: --
a99af3d8e6a01e1d94fca3bc27cfc0071c6b5ede16d7f6b0dd622b93fe81ecb6

Transaction

Hash: a99af3d8e6a01e1d94fca3bc27cfc0071c6b5ede16d7f6b0dd622b93fe81ecb6
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> a99af3d8e6a01e1d94fca3bc27cfc0071c6b5ede16d7f6b0dd622b93fe81ecb6:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
a99af3d8e6a01e1d94fca3bc27cfc0071c6b5ede16d7f6b0dd622b93fe81ecb6
Status:
ERROR
Block height:
39755053
Block id:
d6ef3bd44d594e579e8ac34b77dc0f329a52933fb3e4902b3dbd950d5b65140e
Timestamp:
Wednesday 26 October 2022 at 15:28:24 UTC
()
Proposer:
Authorizers:
Gas used:
49