Flow price: --
234e121334bc5521af9e99b6379b1d485f71884dad95e2e780c7db4ab03d0fea

Transaction

Hash: 234e121334bc5521af9e99b6379b1d485f71884dad95e2e780c7db4ab03d0fea
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 234e121334bc5521af9e99b6379b1d485f71884dad95e2e780c7db4ab03d0fea: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:
234e121334bc5521af9e99b6379b1d485f71884dad95e2e780c7db4ab03d0fea
Status:
ERROR
Block height:
39982460
Block id:
c7bec6283a907f42305f45c6d7a619f9fb27bc32b5d3fb17385dbf7c7fe8e6e8
Timestamp:
Sunday 30 October 2022 at 10:44:03 UTC
()
Proposer:
Authorizers:
Gas used:
47