"unexpected exception when initializing view part Fragment matches"

Hello everyone,

I anticipate that I am not a computer expert. Yesterday my SDL Trados 2019 has stopped working. Every time I tried to open a Project or a XLIFF file, this message was shown. I tried to uninstall and re-install Trados but that doesn't solve anything. I also read the preceding advice but I can't make sense of it.

Somebody can explain me what to do? (in an easy way)

(I anticipate that I have a MAC with Windows installed on it (BOOTCAMP)

Thank you everyone!