Flow price: --
844b72e83a77105234e6e836d3d596e477a78ea95d3eb91f2e05efc050686e09

Transaction

Hash: 844b72e83a77105234e6e836d3d596e477a78ea95d3eb91f2e05efc050686e09
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> 844b72e83a77105234e6e836d3d596e477a78ea95d3eb91f2e05efc050686e09:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
844b72e83a77105234e6e836d3d596e477a78ea95d3eb91f2e05efc050686e09
Status:
ERROR
Block height:
40136182
Block id:
de70fa73d7fdc6aec3733d9bfd7bdfaac1d8989ec924beb3055f53a50ad885fe
Timestamp:
Wednesday 2 November 2022 at 00:37:52 UTC
()
Proposer:
Authorizers:
Gas used:
47