Transaction

[Error Code: 1101] cadence runtime error Execution failed:
  --> 9cf16617a0b4d6e7858f66cf364ad5b5127da8c7d109ff5e0a3908ef15fb2c9d:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

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