Transaction

[Error Code: 1101] cadence runtime error Execution failed:
  --> 3d20381e049e935fd2bc3b37f7358b9fbc3f9c3b02f3f2b25b573b0e33b43a69:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

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