Reinstall c5 from Server Backup (with a full cache and pretty urls set)

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I have received a server backup from a provider. I tried to reinstall the site without success. I fear that the cache has not been emtied and pretty URL's are installed. The site is done with 5.7.5.9 und PHP Version 5.6.36.

Is there a way?
Thanks for Help

helvetica
 
hutman replied on at Permalink Reply
hutman
You can empty the cache by deleting everything in application/files/cache pretty urls might be fine.

What happens when you try to do it?
helvetica replied on at Permalink Reply
helvetica
Still the same situation. After login I see an incomplete site without c5 toolbar. Pictures are missing, links lead to error page.
hutman replied on at Permalink Reply
hutman
Ok, so the site works but the URLs are wrong. Can you get to the Dashboard by typing /dashboard and turn off Pretty URLs and clear the cache?
helvetica replied on at Permalink Reply
helvetica
hutman, thanks for helping

Before I got an 404 error.

Now it says:
Ein unerwarteter Fehler ist aufgetreten. = unexpected error occurred.
Die Kennung für den Authentifizierungstyp ist ungültig. = Authentication type is invalid.
Gondwana replied on at Permalink Reply
Gondwana
.htaccess (or equivalent)?
helvetica replied on at Permalink Reply
helvetica
I tried with and without .htaccess file in the root, - no action, same result.