Error 0x80040426

Value: -2147220442 | 0x80040426 | 2147746854

What does it mean ?

The content index cannot be created because an index with the same name already exists on the search server. Create the content index using a different name.
Value: 1062 | 0x0426 | 0b0000010000100110

Where does it come from ?

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