Transaction

[Error Code: 1101] cadence runtime error Execution failed:
  --> c2ad696c08a9c30ee0e419ec2b20ee455e92fdbcc3c05234ecaad57e2e4d1d27:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

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