Flow price: --
72b0835e70af675485e9f118aa5c02015c90ebc8b8a24dd0a24da371ede15818

Transaction

Hash: 72b0835e70af675485e9f118aa5c02015c90ebc8b8a24dd0a24da371ede15818
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 72b0835e70af675485e9f118aa5c02015c90ebc8b8a24dd0a24da371ede15818:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
72b0835e70af675485e9f118aa5c02015c90ebc8b8a24dd0a24da371ede15818
Status:
ERROR
Block height:
39969513
Block id:
6831511ae10f432234451feac19e0af2b87f7b6a160cec163a9e4cd3e25b8b58
Timestamp:
Sunday 30 October 2022 at 05:33:46 UTC
()
Proposer:
Authorizers:
Gas used:
49