Hi Elke,
Thanks for writing in! Upon testing, I see the following error in your console log.
downloadable font: download failed (font-family: "FontAwesome" style:normal weight:400 stretch:100 src index:1): status=2147746065 source: /wp-content/themes/x/framework/fonts/font_awesome/fontawesome-webfont.woff2?v=4.7.0
Could you please try re-installing your X theme and Cornerstone plugin and see if that resolves your issue. First make sure to purge your server cache and disable your caching plugins. Also disable and delete your Cornerstone plugin from your WP plugins section. Then download the latest X theme from your Envato account and then re-install X theme by following the instructions below.
Manual X Update via the WordPress Dashboard
- Visit Appearance > Themes in your WordPress dashboard.
- Temporarily switch to one of the WordPress default themes.
- Delete your current X theme. Your settings and content will be safe, since they are stored in the database, not the theme files.
- Use Add New, then Upload Theme to reinstall X from the x.zip file.
- Once the X theme is installed, it will automatically install the Cornerstone plugin as well.
Once you have installed both X theme and Cornerstone plugin, try re-testing your site again.
If you’re still having issues, please provide us with your WordPress login credentials in a secure note.
Thanks!