Transaction

[Error Code: 1101] cadence runtime error Execution failed:
  --> 9b6b0bd42ca7e6c3b17f06d090d033a244e4e97d6a2bbf7a89743f9da0b4b7c5:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

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