Flow price: --
f33d49e430601365b4ce9dd68dede792e85970864dde3e5564c5c741b1701692

Transaction

Hash: f33d49e430601365b4ce9dd68dede792e85970864dde3e5564c5c741b1701692
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> f33d49e430601365b4ce9dd68dede792e85970864dde3e5564c5c741b1701692:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
f33d49e430601365b4ce9dd68dede792e85970864dde3e5564c5c741b1701692
Status:
ERROR
Block height:
39936317
Block id:
8dc1423199df8f1204ad549b198e65b36f7ba8eec166cb15704cc97f966bba70
Timestamp:
Saturday 29 October 2022 at 16:23:07 UTC
()
Proposer:
Authorizers:
Gas used:
47