Error 0x80040D6F

Value: -2147218065 | 0x80040D6F | 2147749231

What does it mean ?

GTHR_E_FORCE_NOTIFICATION_RESET  
The gatherer cannot handle the alert stream. All alert sources will be crawled again.
Value: 3439 | 0x0D6F | 0b0000110101101111

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