Transaction

[Error Code: 1101] cadence runtime error Execution failed:
  --> 0d2e1f1f8bbd2819a2f5723246eefc07254a41a149f82ef9ce818b0be4cb8313:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

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