Transaction

[Error Code: 1101] cadence runtime error Execution failed:
  --> d230ac0d7e08e9c09acaa37b4a73a200b4fa0dd6b43d9e040fa8934218c6ba56:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

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