Flow price: --
5f65dc2f150aa1b594d28da1b177e3690185cdbaf14fc16f6e7128a993b8e838

Transaction

Hash: 5f65dc2f150aa1b594d28da1b177e3690185cdbaf14fc16f6e7128a993b8e838
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 5f65dc2f150aa1b594d28da1b177e3690185cdbaf14fc16f6e7128a993b8e838:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
5f65dc2f150aa1b594d28da1b177e3690185cdbaf14fc16f6e7128a993b8e838
Status:
ERROR
Block height:
40113382
Block id:
134836f8800305091c915cefcf96cb116075e1bdb3e7e395afe1750794eac5f3
Timestamp:
Tuesday 1 November 2022 at 15:20:04 UTC
()
Proposer:
Authorizers:
Gas used:
46