Flow price: --
665b0d03b748f545e36e23a48173f7526ec9f75c99c3a43d9dc4eaa421091dbb

Transaction

Hash: 665b0d03b748f545e36e23a48173f7526ec9f75c99c3a43d9dc4eaa421091dbb
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 665b0d03b748f545e36e23a48173f7526ec9f75c99c3a43d9dc4eaa421091dbb: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:
665b0d03b748f545e36e23a48173f7526ec9f75c99c3a43d9dc4eaa421091dbb
Status:
ERROR
Block height:
40017123
Block id:
0e8382c3f797eb1842b3a1589c403e91201aaf6f145fb06d57ef41c42b041bec
Timestamp:
Monday 31 October 2022 at 00:33:11 UTC
()
Proposer:
Authorizers:
Gas used:
50