Flow price: --
258fe8120e68c82a0037677b6a873fd17846b260178e10a8dd819f171bef8528

Transaction

Hash: 258fe8120e68c82a0037677b6a873fd17846b260178e10a8dd819f171bef8528
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 258fe8120e68c82a0037677b6a873fd17846b260178e10a8dd819f171bef8528:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
258fe8120e68c82a0037677b6a873fd17846b260178e10a8dd819f171bef8528
Status:
ERROR
Block height:
39924134
Block id:
d3158b7491b518bc04a4a3e34a9989cc1c28b229ecbc95608437a6a020270950
Timestamp:
Saturday 29 October 2022 at 11:26:50 UTC
()
Proposer:
Authorizers:
Gas used:
51