Error 0x8004507E

Value: -2147200898 | 0x8004507E | 2147766398

What does it mean ?

SPERR_CANNOT_NORMALIZE  
The word passed to the normalize interface cannot be normalized
Value: 20606 | 0x507E | 0b0101000001111110

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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