Flow price: --
237e521c111b773c40fef5c69579e0fffab073aadd4e7a87c2f6f12c2d5bcbfe

Transaction

Hash: 237e521c111b773c40fef5c69579e0fffab073aadd4e7a87c2f6f12c2d5bcbfe
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 237e521c111b773c40fef5c69579e0fffab073aadd4e7a87c2f6f12c2d5bcbfe: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:
237e521c111b773c40fef5c69579e0fffab073aadd4e7a87c2f6f12c2d5bcbfe
Status:
ERROR
Block height:
40056747
Block id:
4cac68d979b057d2ed3fd4a4a750f781264b4445e4472362772df7288370829e
Timestamp:
Monday 31 October 2022 at 16:30:34 UTC
()
Proposer:
Authorizers:
Gas used:
47