Error 0x8004504C

Value: -2147200948 | 0x8004504C | 2147766348

What does it mean ?

SPERR_SR_ENGINE_EXCEPTION  
An exception was raised during a call to the current SR engine.
Value: 20556 | 0x504C | 0b0101000001001100

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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