Error 0x80045012

Value: -2147201006 | 0x80045012 | 2147766290

What does it mean ?

SPERR_TTS_ENGINE_EXCEPTION  
An exception was raised during a call to the current TTS driver.
Value: 20498 | 0x5012 | 0b0101000000010010

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

StackOverflow

Other Errors for FACILITY_ITF