Transaction

[Error Code: 1101] cadence runtime error Execution failed:
  --> 5d9c9d12f1f72921df7157a0ffc41ec48aa6c8e0672b7bac2b758b9d220fbe3c:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

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