Flow price: --
f510f272f0acd73c0308a3598f8f257ba7e93983b71e9ce3488192d49e099dd1

Transaction

Hash: f510f272f0acd73c0308a3598f8f257ba7e93983b71e9ce3488192d49e099dd1
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> f510f272f0acd73c0308a3598f8f257ba7e93983b71e9ce3488192d49e099dd1:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
f510f272f0acd73c0308a3598f8f257ba7e93983b71e9ce3488192d49e099dd1
Status:
ERROR
Block height:
39785445
Block id:
28a3bc8ee4f21d2b73e085efc1647c07f066b6e114034e589e19e2d457c5bc5e
Timestamp:
Thursday 27 October 2022 at 03:43:36 UTC
()
Proposer:
Authorizers:
Gas used:
48