Error 0x8002000F

Value: -2147352561 | 0x8002000F | 2147614735

What does it mean ?

DISP_E_PARAMNOTOPTIONAL  
Parameter not optional.
Value: 15 | 0x000F | 0b0000000000001111

Where does it come from ?

FACILITY_DISPATCH  
COM Dispatch (IDispatch interface)
Value: 2 | 0x002 | 0b00000010

Other Errors for FACILITY_DISPATCH