Error 0x80045002

Value: -2147201022 | 0x80045002 | 2147766274

What does it mean ?

SPERR_ALREADY_INITIALIZED  
The object has already been initialized.
Value: 20482 | 0x5002 | 0b0101000000000010

Where does it come from ?

FACILITY_ITF  
COM/OLE Interface management. FACILITY_ITF is designated for user-defined error codes returned from interface methods
Value: 4 | 0x004 | 0b00000100

Other Errors for FACILITY_ITF