Flow price: --
fd173c96e1b7ca4d06227fe6933bb4e10db604c63dda85d5065a39882302e530

Transaction

Hash: fd173c96e1b7ca4d06227fe6933bb4e10db604c63dda85d5065a39882302e530
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> fd173c96e1b7ca4d06227fe6933bb4e10db604c63dda85d5065a39882302e530:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
fd173c96e1b7ca4d06227fe6933bb4e10db604c63dda85d5065a39882302e530
Status:
ERROR
Block height:
39978161
Block id:
bca36d1cf6ea85e1bd44f0d86177a88e4d4717f7be9617a8f2a094fb1870aa93
Timestamp:
Sunday 30 October 2022 at 09:01:33 UTC
()
Proposer:
Authorizers:
Gas used:
47