Error 0x88880006

Value: -2004353018 | 0x88880006 | 2290614278

What does it mean ?

LEAP_E_INVALID_LEAP_BUFFER  
No LeapBuffer was found with the given identifier.
Value: 6 | 0x0006 | 0b0000000000000110

Where does it come from ?

FACILITY_LEAP  
XAudio2 Internal Errors
Value: 2184 | 0x888 | 0b100010001000

Other Errors for FACILITY_LEAP