Hi Matt,
Thanks for writing in! You need to update both X theme and Cornerstone plugin to the latest versions, in-order to make it fully compatible. When checking your site URL assigned to this Themeco account, I see that you have updated your X theme but you’re still using an older version of Cornerstone plugin (v2.0.6) which creates incompatibility issues. The latest version of Cornerstone plugin is v3.4.6 as you can see here (https://theme.co/apex/forum/t/troubleshooting-version-compatibility/195).
In your case, just disable and delete the existing Cornerstone plugin by head over to plugins section. Then Head over to X -> Validation section and wait for few seconds to install the latest version of Cornerstone plugin automatically.
Once you’re fully updated, make sure to clear full cache by following this guide (https://www.wpbeginner.com/beginners-guide/how-to-clear-your-cache-in-wordpress/) before testing your site.
In case if the issue remains, could you also please try following our general troubleshooting guidelines below and see if you can isolate the issue.
- Make sure that you’re running at least PHP v5.6.x or later to avoid any WordPress related incompatibility issues. If you’re not sure what your server configurations and settings are, install a plugin like WP-Serverinfo (https://wordpress.org/plugins/wp-serverinfo/) and check your server info by head over to Dashboard -> WP Serverinfo area.
- Try increasing your PHP Memory limit by following our guide here (https://theme.co/apex/forum/t/troubleshooting-increasing-php-memory-limit/16935).
- Test for a plugin conflict by disabling your 3rd party plugins except Cornerstone plugin. If the issue is resolved, then you can activate your plugins one by one to see which plugin causing the issue.
If you’re still having issues, provide us with your WordPress login credentials in a secure note to check your issue further.
Let us know how it goes.
Thanks!