Transaction

[Error Code: 1101] cadence runtime error Execution failed:
  --> b70e989aac5aca0ba7a6c449a3a4a3d40a725e075d4eda1b8f7f57f4761ef824:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

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