Transaction

[Error Code: 1101] cadence runtime error Execution failed:
  --> d3755e6cc2a7703750b9b5b1fff2c956fc267fa8f1ad3f48b3d69a791c614805:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

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