Flow price: --
f0b854dd7fbc7dea89b47320ffbcd233dee76796f914fa419f4a36bce2e56e04

Transaction

Hash: f0b854dd7fbc7dea89b47320ffbcd233dee76796f914fa419f4a36bce2e56e04
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> f0b854dd7fbc7dea89b47320ffbcd233dee76796f914fa419f4a36bce2e56e04:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
f0b854dd7fbc7dea89b47320ffbcd233dee76796f914fa419f4a36bce2e56e04
Status:
ERROR
Block height:
40029331
Block id:
ab01a66aee763fa9d6caf5bb7924225d9a90b0ed681cb7209a13e698dfd715d9
Timestamp:
Monday 31 October 2022 at 05:27:01 UTC
()
Proposer:
Authorizers:
Gas used:
48