Transaction

[Error Code: 1101] cadence runtime error Execution failed:
  --> c13ad1c768dc19d1df7ea30a0778bfe3b09e9f29a7bd3ef364c8b3646d9bfd74:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

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