Error 0x8004FD0A

Value: -2147156726 | 0x8004FD0A | 2147810570

What does it mean ?

FTE_E_FD_OCCURRENCE_OVERFLOW  
Occurrence counter overflow, document is not indexed.
Value: 64778 | 0xFD0A | 0b1111110100001010

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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