Transaction

[Error Code: 1101] cadence runtime error Execution failed:
  --> 5417a7f2566d4a1f82baeb33cf8e46da0b1c6c23d406588a2a1077ca39ca2b46:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

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