Flow price: --
5b415ae6fc850e1e018e42e1b8cf3ec7f406282e20a8e9150fea46768e862398

Transaction

Hash: 5b415ae6fc850e1e018e42e1b8cf3ec7f406282e20a8e9150fea46768e862398
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 5b415ae6fc850e1e018e42e1b8cf3ec7f406282e20a8e9150fea46768e862398:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
5b415ae6fc850e1e018e42e1b8cf3ec7f406282e20a8e9150fea46768e862398
Status:
ERROR
Block height:
40156980
Block id:
5f6f3d9c83e47678ef32f7bdaa85f3b393981bb7a7f1d6440ee9743a87986486
Timestamp:
Wednesday 2 November 2022 at 09:04:55 UTC
()
Proposer:
Authorizers:
Gas used:
47