disinstall and re-install 2017

after 2017 crashed and could not be reopened, I chose to disinstall and re-install. the same issue has been discussed here https://gateway.rws.com/csm?id=kb_article_view&sysparm_article=KB0032886. but even after emtying the folder, nothing changed and the same error message shows up. pls help!

thank you :)

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