ERROR: "The preview could not load. "

[EnriqueMarusi]

Hi. X-Theme (Cornerstone) has been all day showing us this error:

The preview could not load. This is most often related to a plugin conflict or aggressive page cacheing. Checking the developer console for errors could indicate what went wrong.

This isn’t the first time it happens, so I have checked all your indications in order to trying to fix it. I have done the following:

1. Ensure everything is up to date according to our version compatibility list at https://theme.co/apex/forum/t/troubleshooting-version-compatibility/195. Please follow the best practices when updating your theme and plugins. See https://theme.co/apex/forum/t/setup-updating-your-themes-and-plugins/62 for more details.
2. Clear all caches including browser cache then deactivate your caching plugins and other optimization plugins.
3. If you’re using a CDN, please clear the CDN’s cache and disable optimization services.
4. Test for a plugin conflict. You can do this by deactivating all third party plugins, and seeing if the problem remains. If it’s fixed, you’ll know a plugin caused the problem, and you can narrow down which one by reactivating them one at a time.

We don’t have custom CSS nor JavaScript in our site.

We need to fix this issue ASAP.

[thai]

Hi There,

Please increase the PHP Memory Limit of your server. Click here for more detailed information and how to increase the PHP memory limit.

If you still have problems kindly get back to us with the result of the steps above and URL/User/Pass of your WordPress dashboard using the Secure Note functionality of the post to follow up the case.

Thank you.