Flow price: --
745d1589c989e75921add636c5cb49d78d55beb8382f67d0c40747f78e2efc8d

Transaction

Hash: 745d1589c989e75921add636c5cb49d78d55beb8382f67d0c40747f78e2efc8d
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 745d1589c989e75921add636c5cb49d78d55beb8382f67d0c40747f78e2efc8d: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:
745d1589c989e75921add636c5cb49d78d55beb8382f67d0c40747f78e2efc8d
Status:
ERROR
Block height:
39969935
Block id:
68599eb63ad6f8860770aa656eeee5f127c98736320e01411965929d7422c559
Timestamp:
Sunday 30 October 2022 at 05:43:52 UTC
()
Proposer:
Authorizers:
Gas used:
47