Flow price: --
300926a9d99fcc58b8438af7767fcf72598fd8c8a0b68ce7e409566f39efe8cc

Transaction

Hash: 300926a9d99fcc58b8438af7767fcf72598fd8c8a0b68ce7e409566f39efe8cc
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 300926a9d99fcc58b8438af7767fcf72598fd8c8a0b68ce7e409566f39efe8cc: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:
300926a9d99fcc58b8438af7767fcf72598fd8c8a0b68ce7e409566f39efe8cc
Status:
ERROR
Block height:
40170049
Block id:
0679054dc89a06d51615b5cb3d3388d7ea6ff9789df21890f632dd83e2f7d85e
Timestamp:
Wednesday 2 November 2022 at 14:21:40 UTC
()
Proposer:
Authorizers:
Gas used:
48