Transaction

[Error Code: 1101] cadence runtime error Execution failed:
  --> fa99b2f5c27cc72a9286f9e8095f8c298d1a96a9b2b3769d77aca437f6ec9f17:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

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