Transaction

[Error Code: 1101] cadence runtime error Execution failed:
  --> 2637470c7831e372a6d93af0429a8f5aaa0d2547bcd6dcacb2b07cd8f4b8b32b:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

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