Transaction

[Error Code: 1101] cadence runtime error Execution failed:
  --> 2812e7cc8199a7e914055626d8f9a2b661dbcd9761164e4f05b8a5bd4f702a23:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

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