Flow price: --
877f568ed3aacd0fc6cd5da208c0b63af128d6bf7176c7573a29a5e596a4340c

Transaction

Hash: 877f568ed3aacd0fc6cd5da208c0b63af128d6bf7176c7573a29a5e596a4340c
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 877f568ed3aacd0fc6cd5da208c0b63af128d6bf7176c7573a29a5e596a4340c: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:
877f568ed3aacd0fc6cd5da208c0b63af128d6bf7176c7573a29a5e596a4340c
Status:
ERROR
Block height:
40098461
Block id:
5039b80dd814225fdefd99b8bcd9dc43b2e3f247e15849e7fb603b634a05cff8
Timestamp:
Tuesday 1 November 2022 at 09:18:11 UTC
()
Proposer:
Authorizers:
Gas used:
45