Flow price: --
b830d853f9e656e9ecc388ec3b94e555ebd204d8979e8887c7eda35a0b7693bc

Transaction

Hash: b830d853f9e656e9ecc388ec3b94e555ebd204d8979e8887c7eda35a0b7693bc
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> b830d853f9e656e9ecc388ec3b94e555ebd204d8979e8887c7eda35a0b7693bc: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:
b830d853f9e656e9ecc388ec3b94e555ebd204d8979e8887c7eda35a0b7693bc
Status:
ERROR
Block height:
40049601
Block id:
1443c7876e0c8a0a914b6a13b4ac5d6186e3b06e0858be41d8d0a583435c21b7
Timestamp:
Monday 31 October 2022 at 13:36:14 UTC
()
Proposer:
Authorizers:
Gas used:
50