Error 0x8004D109

Value: -2147167991 | 0x8004D109 | 2147799305

What does it mean ?

XACT_E_DUPLICATE_LU  
The specified logical unit of work already exists.
Value: 53513 | 0xD109 | 0b1101000100001001

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

StackOverflow

Other Errors for FACILITY_ITF