Error 0x88781130

Value: -2005397200 | 0x88781130 | 2289570096

What does it mean ?

DMUS_E_ALREADYCLOSED  
An attempt was made to close the software synthesizer while it was already closed.
Value: 4400 | 0x1130 | 0b0001000100110000

Where does it come from ?

FACILITY_DIRECTMUSIC  
Direct Music (part of DirectX) - Audio
Value: 2168 | 0x878 | 0b100001111000

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