Flow price: --
d83b581c4b719091edf0a5313d59880cf87e6ac0a529c4ebca15e5a43e365cda

Transaction

Hash: d83b581c4b719091edf0a5313d59880cf87e6ac0a529c4ebca15e5a43e365cda
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> d83b581c4b719091edf0a5313d59880cf87e6ac0a529c4ebca15e5a43e365cda: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:
d83b581c4b719091edf0a5313d59880cf87e6ac0a529c4ebca15e5a43e365cda
Status:
ERROR
Block height:
40034745
Block id:
b362b3360c61e6b186b84f4a2fa958472a892ddcf0d2f990d86b3d08f043ad37
Timestamp:
Monday 31 October 2022 at 07:37:40 UTC
()
Proposer:
Authorizers:
Gas used:
48