Flow price: --
f968a7f0e2b4c398f60d9433160d12fc1700eb0f8ea3f97cea925c231b357094

Transaction

Hash: f968a7f0e2b4c398f60d9433160d12fc1700eb0f8ea3f97cea925c231b357094
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> f968a7f0e2b4c398f60d9433160d12fc1700eb0f8ea3f97cea925c231b357094:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
f968a7f0e2b4c398f60d9433160d12fc1700eb0f8ea3f97cea925c231b357094
Status:
ERROR
Block height:
40142810
Block id:
18c87c16334101644fc84bdd44b7e59d3e6c57e08454f109371124ef0e48b9e4
Timestamp:
Wednesday 2 November 2022 at 03:18:40 UTC
()
Proposer:
Authorizers:
Gas used:
48