Transaction

[Error Code: 1101] cadence runtime error Execution failed:
  --> bc0bc9a8e6063a678995ff1a11ce7ba79b0e65c33e7e32fee50d7f933f22f983:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

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