Flow price: --
02c2e0a3599c77d9b00414216b6bf40160a46956ffd1e959b5b2ffb39e071aeb

Transaction

Hash: 02c2e0a3599c77d9b00414216b6bf40160a46956ffd1e959b5b2ffb39e071aeb
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 02c2e0a3599c77d9b00414216b6bf40160a46956ffd1e959b5b2ffb39e071aeb: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:
02c2e0a3599c77d9b00414216b6bf40160a46956ffd1e959b5b2ffb39e071aeb
Status:
ERROR
Block height:
39897130
Block id:
ac73dac0caf8537e0b52523d04546843b3a669597a83d1057a37ff910437b7b0
Timestamp:
Saturday 29 October 2022 at 00:37:17 UTC
()
Proposer:
Authorizers:
Gas used:
48