Flow price: --
a664a8f8ea8f370fe7bec88447ea469d0c78d65800fb7c6b2343e410b2eedc80

Transaction

Hash: a664a8f8ea8f370fe7bec88447ea469d0c78d65800fb7c6b2343e410b2eedc80
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> a664a8f8ea8f370fe7bec88447ea469d0c78d65800fb7c6b2343e410b2eedc80:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
a664a8f8ea8f370fe7bec88447ea469d0c78d65800fb7c6b2343e410b2eedc80
Status:
ERROR
Block height:
39869068
Block id:
0501f01617ec383facb2a5180e21820fcfa5709adeaad3fbfac9634e97ba9bd2
Timestamp:
Friday 28 October 2022 at 13:27:23 UTC
()
Proposer:
Authorizers:
Gas used:
46