Error 0x8888000F

Value: -2004353009 | 0x8888000F | 2290614287

What does it mean ?

LEAP_E_NOT_INITIALIZED  
ILeap::Initialize must be called successfully before any other API call.
Value: 15 | 0x000F | 0b0000000000001111

Where does it come from ?

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

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Other Errors for FACILITY_LEAP