Flow price: --
d34238155509b44149a6d5b9f29d5b5ccaece3ff44e3c2a2c9e9722724e4fec9

Transaction

Hash: d34238155509b44149a6d5b9f29d5b5ccaece3ff44e3c2a2c9e9722724e4fec9
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> d34238155509b44149a6d5b9f29d5b5ccaece3ff44e3c2a2c9e9722724e4fec9:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
d34238155509b44149a6d5b9f29d5b5ccaece3ff44e3c2a2c9e9722724e4fec9
Status:
ERROR
Block height:
39870010
Block id:
4c137f3c1978314e3f100a377e1926c6f8aee2933a9ff41eb3d858d91f172a85
Timestamp:
Friday 28 October 2022 at 13:49:47 UTC
()
Proposer:
Authorizers:
Gas used:
48