Flow price: --
a716e269a17979b679f3c13e3151a70d1acab1e7e5ce8207463e2d41a80f8fe7

Transaction

Hash: a716e269a17979b679f3c13e3151a70d1acab1e7e5ce8207463e2d41a80f8fe7
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> a716e269a17979b679f3c13e3151a70d1acab1e7e5ce8207463e2d41a80f8fe7:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
a716e269a17979b679f3c13e3151a70d1acab1e7e5ce8207463e2d41a80f8fe7
Status:
ERROR
Block height:
39966492
Block id:
b84a27ed8847a10aff9eab58e71fec8aac86c26536cd2acad4597dc20f031644
Timestamp:
Sunday 30 October 2022 at 04:21:27 UTC
()
Proposer:
Authorizers:
Gas used:
50