Flow price: --
42a542a14d2dd8a1a75221039d06499b5fd7394198e974eb1d85aca54b450166

Transaction

Hash: 42a542a14d2dd8a1a75221039d06499b5fd7394198e974eb1d85aca54b450166
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 42a542a14d2dd8a1a75221039d06499b5fd7394198e974eb1d85aca54b450166:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
42a542a14d2dd8a1a75221039d06499b5fd7394198e974eb1d85aca54b450166
Status:
ERROR
Block height:
40037231
Block id:
66e412315d2368245edb59f20b7fbe193d9c16b3daf8c6d209dbc3753ade8275
Timestamp:
Monday 31 October 2022 at 08:36:47 UTC
()
Proposer:
Authorizers:
Gas used:
47