Transaction

[Error Code: 1101] cadence runtime error Execution failed:
  --> 665fb3be8f5c600cccaf3c33297c10a9dcf69e0faebf4a7977089f4cf3969e10:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

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