Error 0x80043509

Value: -2147207927 | 0x80043509 | 2147759369

What does it mean ?

REXSPH_E_DUPLICATE_PROPERTY  
A duplicate property was found. Call Microsoft support if this error is encountered.
Value: 13577 | 0x3509 | 0b0011010100001001

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

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