Transaction

[Error Code: 1101] cadence runtime error Execution failed:
  --> c57d77df495a7339e51729dac1e41bd2de1cc7d9b78b3dfcda1743f6f0c8e9d5:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

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