Flow price: --
99acd2ddecc1141250d0c4a18ea236deb3e5c5148af12acc4937f8b8219cefd5

Transaction

Hash: 99acd2ddecc1141250d0c4a18ea236deb3e5c5148af12acc4937f8b8219cefd5
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 99acd2ddecc1141250d0c4a18ea236deb3e5c5148af12acc4937f8b8219cefd5:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
99acd2ddecc1141250d0c4a18ea236deb3e5c5148af12acc4937f8b8219cefd5
Status:
ERROR
Block height:
40027840
Block id:
dba933418e79eeda6a460a24074c842e392c6ba854eafedd074d2f381978890c
Timestamp:
Monday 31 October 2022 at 04:50:37 UTC
()
Proposer:
Authorizers:
Gas used:
48