Flow price: --
b975e81a561d0a1c886bad85d413cc220db7f89e2ce6841f642e359d2f97f689

Transaction

Hash: b975e81a561d0a1c886bad85d413cc220db7f89e2ce6841f642e359d2f97f689
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> b975e81a561d0a1c886bad85d413cc220db7f89e2ce6841f642e359d2f97f689:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
b975e81a561d0a1c886bad85d413cc220db7f89e2ce6841f642e359d2f97f689
Status:
ERROR
Block height:
39754369
Block id:
59fd555e2b0dcdcb39bb27886c4b164839f2fabfdd9a038a8e09afe9e780db94
Timestamp:
Wednesday 26 October 2022 at 15:12:08 UTC
()
Proposer:
Authorizers:
Gas used:
46