Flow price: --
6b59dd82860a0ea141c122dc7a457a972dadc4d1fa4debe07aea17a70c2340f2

Transaction

Hash: 6b59dd82860a0ea141c122dc7a457a972dadc4d1fa4debe07aea17a70c2340f2
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 6b59dd82860a0ea141c122dc7a457a972dadc4d1fa4debe07aea17a70c2340f2:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
6b59dd82860a0ea141c122dc7a457a972dadc4d1fa4debe07aea17a70c2340f2
Status:
ERROR
Block height:
40047155
Block id:
8be77a37b61955110cef9b8532009b8ded0ab4cd70a08673e8285e3679c76a50
Timestamp:
Monday 31 October 2022 at 12:37:21 UTC
()
Proposer:
Authorizers:
Gas used:
49