Flow price: --
1a80ca0efb644d98a00d15353b7789343128f6a8dce019e91674a9acbc802f1c

Transaction

Hash: 1a80ca0efb644d98a00d15353b7789343128f6a8dce019e91674a9acbc802f1c
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 1a80ca0efb644d98a00d15353b7789343128f6a8dce019e91674a9acbc802f1c: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:
1a80ca0efb644d98a00d15353b7789343128f6a8dce019e91674a9acbc802f1c
Status:
ERROR
Block height:
40170088
Block id:
b2191eb6d31afb33ce194b8ab40dc524a9b378a293abc9b8eeb60e68d0ba152b
Timestamp:
Wednesday 2 November 2022 at 14:22:35 UTC
()
Proposer:
Authorizers:
Gas used:
50