Flow price: --
75d578116232a194e5a441bae843d35358bf8bac98153194ddb8e5a4d921d1e3

Transaction

Hash: 75d578116232a194e5a441bae843d35358bf8bac98153194ddb8e5a4d921d1e3
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 75d578116232a194e5a441bae843d35358bf8bac98153194ddb8e5a4d921d1e3:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
75d578116232a194e5a441bae843d35358bf8bac98153194ddb8e5a4d921d1e3
Status:
ERROR
Block height:
39853574
Block id:
37e1aba9d4a75a75ffee0fb4dc5963dd7ec0fa1f3ff7b56cbd11d0a6b778b45a
Timestamp:
Friday 28 October 2022 at 07:13:15 UTC
()
Proposer:
Authorizers:
Gas used:
65