Error 0x80042617

Value: -2147211753 | 0x80042617 | 2147755543

What does it mean ?

SPS_WS_ERROR  
Error in PortalCrawl Web Service.
Value: 9751 | 0x2617 | 0b0010011000010111

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

Other Errors for FACILITY_ITF