Transaction

[Error Code: 1101] cadence runtime error Execution failed:
  --> 807b146b5150e1d6692d31c7e7656a633d34a4c6eb9879a0b6d3e3f835c9e423:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

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