Transaction

[Error Code: 1101] cadence runtime error Execution failed:
  --> 0469d4f51c30cc1bc94a99b9b5cb7f5d7e12fc290da0427f1c86cd9e8d07e301:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

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