Transaction

[Error Code: 1101] cadence runtime error Execution failed:
  --> 1fb86246a4ccbd4ddb57b102a06ae13e92a41c26bbe4dce50a843a3c9e989388:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34