Cannot edit or create new pages in Cornerstone

I cannot call up exiting pages originally created in Cornerstone editor. Screen comes up blank, the sections are missing. I also cannot create a new page either; unable to add content to a new page. I’ve updated to the latest version of X theme, but to no avail.

Hello David,

Thanks for writing in!

I see that you are using X Theme 6.4.6 and Cornerstone 3.4.6. Please update X Theme and Cornerstone to latest version i.e X Theme 6.5.6 and Cornerstone 3.5.6. Here’s some resources that you can take a look to update X Theme and Cornerstone.


I’m working from a staging environment where both versions are up-to-date. This problem has been happening for months. Occurred after a previous update. Since then, I cannot update my home page in Cornerstone.

Hi David,

If you’re getting a blank screen, most probably it could be a PHP fatal error. Please enable WP_DEBUG mode on your WordPress and re-visit your page to see if you’re getting any PHP error messages. To enable WP_DEBUG mode, you can refer to the following resource (

If you see any error related to PHP memory such as running out of allocated memory, you can follow our guide on how to increase memory limit (

Please make sure to clear all caches when testing your issue again (

If you’re still having issues, please provide us with your WordPress login credentials in a secure note to check your issue further.


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