Flow price: --
ac7bc0a402923cc591bf01307a6a10f6fe1b8697ae763be41c6ca4097f8e2574

Transaction

Hash: ac7bc0a402923cc591bf01307a6a10f6fe1b8697ae763be41c6ca4097f8e2574
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> ac7bc0a402923cc591bf01307a6a10f6fe1b8697ae763be41c6ca4097f8e2574:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
ac7bc0a402923cc591bf01307a6a10f6fe1b8697ae763be41c6ca4097f8e2574
Status:
ERROR
Block height:
40059445
Block id:
9f77795d90cd7fb10697fda7a7c1e2ed6682d4e29e7af26fcbca94856c2f702f
Timestamp:
Monday 31 October 2022 at 17:36:09 UTC
()
Proposer:
Authorizers:
Gas used:
49