Transaction

[Error Code: 1101] cadence runtime error Execution failed:
  --> 08a7357b6b05bdc06c7cd104f91aeda7ea617fb4c02ff09a08a2d4c148de6a62:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

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