Error 0x80042801

Value: -2147211263 | 0x80042801 | 2147756033

What does it mean ?

CERT_E_NOT_FOUND_OR_NO_PERMISSSION  
Cannot find or access the client certificate specified for crawling this site.
Value: 10241 | 0x2801 | 0b0010100000000001

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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