Error 0x80040D7B

Value: -2147218053 | 0x80040D7B | 2147749243

What does it mean ?

GTHR_E_TIMEOUT  
Document filtering cannot be completed because the document server did not respond within the specified timeout. Try crawling the server later, or increase the timeout values.
Value: 3451 | 0x0D7B | 0b0000110101111011

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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