Transaction

[Error Code: 1101] cadence runtime error Execution failed:
  --> 8ee4d12be069e387778d102dbd2aa2c7df8c45e92a7592e9f09c33a2e42c3c95:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

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