Flow price: --
479b21eacda498aa8cb196732b89b8a065e4aff77391eb8f9b02ff8ae103d529

Transaction

Hash: 479b21eacda498aa8cb196732b89b8a065e4aff77391eb8f9b02ff8ae103d529
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 479b21eacda498aa8cb196732b89b8a065e4aff77391eb8f9b02ff8ae103d529:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
479b21eacda498aa8cb196732b89b8a065e4aff77391eb8f9b02ff8ae103d529
Status:
ERROR
Block height:
40022983
Block id:
7a679c2af807d935c3b474dd51e684aa2f8ba993f24e7093f2114736450dbf86
Timestamp:
Monday 31 October 2022 at 02:53:31 UTC
()
Proposer:
Authorizers:
Gas used:
49