Transaction

[Error Code: 1101] cadence runtime error Execution failed:
  --> d33a5917d97978d5e2fdd6d1aa5e584d6e2bd1b129c40a86b4f40a5e6c64cb99:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

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