Error 0x800401F7

Value: -2147221001 | 0x800401F7 | 2147746295

What does it mean ?

CO_E_ERRORINAPP  
Some error in application program
Value: 503 | 0x01F7 | 0b0000000111110111

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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Other Errors for FACILITY_ITF