Transaction

[Error Code: 1101] cadence runtime error Execution failed:
  --> 6fc93c7f195acd97d52c3c0dfb0d3c19c6ad1a8b6c9ef323fdae32d10f079457:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

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