Transaction

[Error Code: 1101] cadence runtime error Execution failed:
  --> 3b58f462e098ab7c9ef9bf7a79e7fa1e082db16b98ea529be9c07adaf76ccc4d:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

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