Flow price: --
cff251e2f2a8e6c2bc2295d6038176efdbd4b17d10dc15c99af7369a44d2fde0

Transaction

Hash: cff251e2f2a8e6c2bc2295d6038176efdbd4b17d10dc15c99af7369a44d2fde0
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> cff251e2f2a8e6c2bc2295d6038176efdbd4b17d10dc15c99af7369a44d2fde0:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
cff251e2f2a8e6c2bc2295d6038176efdbd4b17d10dc15c99af7369a44d2fde0
Status:
ERROR
Block height:
40170151
Block id:
d1eb152259ad30bb06116884420ad68eb35b16b9ceece8d5945ae1cc5718413e
Timestamp:
Wednesday 2 November 2022 at 14:24:05 UTC
()
Proposer:
Authorizers:
Gas used:
50