Error 0x8AC70001

Value: -1966669823 | 0x8AC70001 | 2328297473

What does it mean ?

XACTENGINE_E_ALREADYINITIALIZED  
The engine is already initialized.
Value: 1 | 0x0001 | 0b0000000000000001

Where does it come from ?

FACILITY_XACTENGINE  
Microsoft Cross-Platform Audio Creation Tool (XACT)
Value: 2759 | 0xAC7 | 0b101011000111

Other Errors for FACILITY_XACTENGINE