Error 0x80040D50

Value: -2147218096 | 0x80040D50 | 2147749200

What does it mean ?

GTHR_E_INVALID_HOST_NAME  
The site name is not specified or is invalid. Specify a site name that does not contain the following characters: [/\\@#|] or spaces.
Value: 3408 | 0x0D50 | 0b0000110101010000

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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