Flow price: --
c1557337cec1df8538cbad1f481dceff2ebf2503974a5ce245fbf2e95cfb7868

Transaction

Hash: c1557337cec1df8538cbad1f481dceff2ebf2503974a5ce245fbf2e95cfb7868
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> c1557337cec1df8538cbad1f481dceff2ebf2503974a5ce245fbf2e95cfb7868:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
c1557337cec1df8538cbad1f481dceff2ebf2503974a5ce245fbf2e95cfb7868
Status:
ERROR
Block height:
40160012
Block id:
20208807d8d23ab9771430c570220a675db04e396093d54fa3d0e0d681233d09
Timestamp:
Wednesday 2 November 2022 at 10:18:47 UTC
()
Proposer:
Authorizers:
Gas used:
50