Flow price: --
78d765e487713247f338425448d3a357ce5c4b17e7e434a64c55f12511b1c5b5

Transaction

Hash: 78d765e487713247f338425448d3a357ce5c4b17e7e434a64c55f12511b1c5b5
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 78d765e487713247f338425448d3a357ce5c4b17e7e434a64c55f12511b1c5b5:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
78d765e487713247f338425448d3a357ce5c4b17e7e434a64c55f12511b1c5b5
Status:
ERROR
Block height:
40168349
Block id:
79caa944b9b10cecfe30839d4ec8f712c37226dd399e7147099a6e9870faa847
Timestamp:
Wednesday 2 November 2022 at 13:40:17 UTC
()
Proposer:
Authorizers:
Gas used:
50