Transaction

[Error Code: 1101] cadence runtime error Execution failed:
  --> c9e647abfd2a443f6c05a1a79c6f8c121245c92ef4ef490fbd78e4d3286bb663:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

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