Transaction

[Error Code: 1101] cadence runtime error Execution failed:
  --> 32497cb5f6ac3d3c2387165009ffd3d16e485216d69c9ff3d4cb5508f00c3d36:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

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