Flow price: --
94f20671c993d59d553b8f79acf8426c270a986aa3d2715adaf85a1a6fdb5af9

Transaction

Hash: 94f20671c993d59d553b8f79acf8426c270a986aa3d2715adaf85a1a6fdb5af9
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 94f20671c993d59d553b8f79acf8426c270a986aa3d2715adaf85a1a6fdb5af9:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
94f20671c993d59d553b8f79acf8426c270a986aa3d2715adaf85a1a6fdb5af9
Status:
ERROR
Block height:
40156223
Block id:
7b69f6c3687085f5e7ef44bc023bd5b3c444e8d54dace0eead79c0caa8148488
Timestamp:
Wednesday 2 November 2022 at 08:46:31 UTC
()
Proposer:
Authorizers:
Gas used:
48