Transaction

[Error Code: 1101] cadence runtime error Execution failed:
  --> d1f7aff4f91edb9ccde72aaf8102a81d2134e086e67b3f3c3d2b48f0d641a3a9:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

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