Flow price: --
407f8dbd96d9231eb04f58a70eb81cd9053137de9015062f4180f23b20e18579

Transaction

Hash: 407f8dbd96d9231eb04f58a70eb81cd9053137de9015062f4180f23b20e18579
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 407f8dbd96d9231eb04f58a70eb81cd9053137de9015062f4180f23b20e18579:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
407f8dbd96d9231eb04f58a70eb81cd9053137de9015062f4180f23b20e18579
Status:
ERROR
Block height:
40080237
Block id:
c42b779b54b482e54b789ee3ae094a5e8debe9133d078ec9c9add3ffc97c0ea6
Timestamp:
Tuesday 1 November 2022 at 01:53:23 UTC
()
Proposer:
Authorizers:
Gas used:
48