Transaction

[Error Code: 1101] cadence runtime error Execution failed:
  --> 0ed0a93678f9ea3b75d736d5d08deb7e3e9b3553d236f7426c721cf6c97a3f33:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

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