Transaction

[Error Code: 1101] cadence runtime error Execution failed:
  --> 03557297161e3fe1a713cc2c1df49bd36fef49ebe4a5e9c8320d9ba7e2781f3a:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

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