Transaction

[Error Code: 1101] cadence runtime error Execution failed:
  --> ad0f63f298ee2099ce6e42fef7660d2be2d6b86f9f0fe1a8c55b3247eb34a783:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

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