Transaction

[Error Code: 1101] cadence runtime error Execution failed:
  --> 7d2fdd7bf80b3408eff67be97d9d2b1df1068cae0250d8b0e691f1a57d279835:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

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