Error 0x80045024

Value: -2147200988 | 0x80045024 | 2147766308

What does it mean ?

SPERR_INVALID_IMPORT  
A rule reference to an imported grammar that could not be resolved.
Value: 20516 | 0x5024 | 0b0101000000100100

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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