Flow price: --
265eb8336d53a963a50400e6bd43348a792a74b91be8fd2e50b310151b70cbe3

Transaction

Hash: 265eb8336d53a963a50400e6bd43348a792a74b91be8fd2e50b310151b70cbe3
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 265eb8336d53a963a50400e6bd43348a792a74b91be8fd2e50b310151b70cbe3:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
265eb8336d53a963a50400e6bd43348a792a74b91be8fd2e50b310151b70cbe3
Status:
ERROR
Block height:
40103381
Block id:
0255b1e667fc3307f88c3ccc4083d21ab6b7ac6651bb530ac12d95b2f91513bb
Timestamp:
Tuesday 1 November 2022 at 11:17:25 UTC
()
Proposer:
Authorizers:
Gas used:
61