Flow price: --
9145bdb50ab127782c199f9e437f81bde0c4e252a07bcc41736b23909bbf30f5

Transaction

Hash: 9145bdb50ab127782c199f9e437f81bde0c4e252a07bcc41736b23909bbf30f5
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 9145bdb50ab127782c199f9e437f81bde0c4e252a07bcc41736b23909bbf30f5:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
9145bdb50ab127782c199f9e437f81bde0c4e252a07bcc41736b23909bbf30f5
Status:
ERROR
Block height:
39923201
Block id:
e4cbb1956413571ad0ab036b2a42e882d6399743d25cb5a363bd223caadd6ee8
Timestamp:
Saturday 29 October 2022 at 11:04:06 UTC
()
Proposer:
Authorizers:
Gas used:
52