Transaction

[Error Code: 1101] cadence runtime error Execution failed:
  --> be1c00ede7a81f0ab0ccff188b5ef438df89a78d34d89a2e4a0214f8ee126c74:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

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