Unexpected exception when initializing view Part Fragment Matches

As of yesterday I started getting this error message every time I try to open a TRADOS 2019 sdlxliff file. 

I have removed and reinstalled TRAODS 2019 but still get the same error. I have also tried to create new files for translation but still get this error. As a result TRADOS 2019 is now completely unusable for me. I have tried disabling UAC settings as previously articles for this error have suggested but that does not work. 

Does anyone have any suggestions on resolving this? 

Thanks!