Flow price: --
c3529a7ab442aa90f4f69c5d9a75458dea8f6fdbd0395e0467412e56339f5520

Transaction

Hash: c3529a7ab442aa90f4f69c5d9a75458dea8f6fdbd0395e0467412e56339f5520
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> c3529a7ab442aa90f4f69c5d9a75458dea8f6fdbd0395e0467412e56339f5520:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
c3529a7ab442aa90f4f69c5d9a75458dea8f6fdbd0395e0467412e56339f5520
Status:
ERROR
Block height:
39977840
Block id:
af2346edbeffe8d6ff0b180f57d47f8653ee53ed3203e8c9e7ecd0f397554b0a
Timestamp:
Sunday 30 October 2022 at 08:53:57 UTC
()
Proposer:
Authorizers:
Gas used:
47