Error 0x80040402

Value: -2147220478 | 0x80040402 | 2147746818

What does it mean ?

DS_E_DATASOURCENOTAVAILABLE  
The requested content index is disabled on the search server. Contact the system administrator to enable the content index. Check the event log for possible errors.
Value: 1026 | 0x0402 | 0b0000010000000010
MS_E_PURPOSEID  
The specified purpose ID can't be used for the call.
Value: 1026 | 0x0402 | 0b0000010000000010

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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