Transaction

[Error Code: 1101] cadence runtime error Execution failed:
  --> 27a510adfd6274475b8e3e2e50c5450c61d6072f1bc2760b38ce5a8ade9bb6dd:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

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