Website completely messes up when logging out

If you check out the browser’s console, you can see that several stylesheets are not loading. Also, there’s this error:

Resource interpreted as Stylesheet but transferred with MIME type text/html: “https://www.counterboosting.com/wp-content/cache/minify/000000/M9BPLCjIz8wryU3NK9EvLqnMSQUA.css“.

It appears that you have a plugin installed that does caching/script minification, and something is not configured correctly there. The plugin is probably configured to NOT serve cached pages to logged in users, so that’s why it looks fine when you’re in the admin area. Disable the caching/script minification plugin, and troubleshoot from there.