Flow price: --
9c515fa705636e0c2c293cd171c8dd932a05ea52f58d1d37fd1e681f5346f980

Transaction

Hash: 9c515fa705636e0c2c293cd171c8dd932a05ea52f58d1d37fd1e681f5346f980
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 9c515fa705636e0c2c293cd171c8dd932a05ea52f58d1d37fd1e681f5346f980:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
9c515fa705636e0c2c293cd171c8dd932a05ea52f58d1d37fd1e681f5346f980
Status:
ERROR
Block height:
39976436
Block id:
319f990d848615b64c18fe5a7a1f4d20254bdc24615b47c4ab58bcf0bf17b1d2
Timestamp:
Sunday 30 October 2022 at 08:20:39 UTC
()
Proposer:
Authorizers:
Gas used:
47