Flow price: --
518af98a136d66e96340d6afb29d086e70818f5d6f7403e2bf99fb7880fb1701

Transaction

Hash: 518af98a136d66e96340d6afb29d086e70818f5d6f7403e2bf99fb7880fb1701
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 518af98a136d66e96340d6afb29d086e70818f5d6f7403e2bf99fb7880fb1701:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
518af98a136d66e96340d6afb29d086e70818f5d6f7403e2bf99fb7880fb1701
Status:
ERROR
Block height:
40112122
Block id:
917f059d2b20260d82af9c6cb2a2d6516c7a5fd0d0a741b9445e29b2f0fe311b
Timestamp:
Tuesday 1 November 2022 at 14:49:42 UTC
()
Proposer:
Authorizers:
Gas used:
49