Flow price: --
40201a74913b51b4553708167445430d3e8db853d5a6ffa935e20b0b975b5af4

Transaction

Hash: 40201a74913b51b4553708167445430d3e8db853d5a6ffa935e20b0b975b5af4
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 40201a74913b51b4553708167445430d3e8db853d5a6ffa935e20b0b975b5af4:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
40201a74913b51b4553708167445430d3e8db853d5a6ffa935e20b0b975b5af4
Status:
ERROR
Block height:
39871297
Block id:
8b5fb33f466de2b898fea2d76102dbae20b2a6398a5b3b0eb534fbcdee710e42
Timestamp:
Friday 28 October 2022 at 14:21:10 UTC
()
Proposer:
Authorizers:
Gas used:
47