Transaction

[Error Code: 1101] cadence runtime error Execution failed:
  --> 62aba4c9a83126d35fcc039a3ac66b5321f1e9f1852fd9daf6d5e5936f9f6241:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

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