Error 0x80045035

Value: -2147200971 | 0x80045035 | 2147766325

What does it mean ?

SPERR_APPLEX_READ_ONLY  
The operation is invalid for all but newly created application lexicons.
Value: 20533 | 0x5035 | 0b0101000000110101

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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