Flow price: --
a57957355858f65c78ec7fe37a0ede6284a545794881c2a1ab59bb2cdce663b4

Transaction

Hash: a57957355858f65c78ec7fe37a0ede6284a545794881c2a1ab59bb2cdce663b4
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> a57957355858f65c78ec7fe37a0ede6284a545794881c2a1ab59bb2cdce663b4:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
a57957355858f65c78ec7fe37a0ede6284a545794881c2a1ab59bb2cdce663b4
Status:
ERROR
Block height:
40171028
Block id:
294bf690b4b8f11104b288c0466adf62a6d007382e8c86850134d0baa2566a77
Timestamp:
Wednesday 2 November 2022 at 14:45:20 UTC
()
Proposer:
Authorizers:
Gas used:
50