Cornertone Error

I upgraded to Pro and I am getting this error when I try to do a clone of a post or page

Warning : Unable to load content from post. in /home/customer/www/XXXXXXXX/public_html/wp-content/themes/pro/cornerstone/includes/classes/elements/class-element-front-end.php on line 113

Warning : Cannot modify header information - headers already sent by (output started at /home/customer/www/jXXXXXXXXX/public_html/wp-content/themes/pro/cornerstone/includes/classes/elements/class-element-front-end.php:113) in /home/customer/www/johng121.sg-host.com/public_html/wp-includes/pluggable.php on line 1296

1 Like

Hi @highmark,

Thanks for reaching out. Does it finish cloning and it’s just the warnings being output? Or does it fail? Also, what are you using to clone the pages? There’s not a plugin with that functionality that we test for compatibility for, but we might be able to take a look at it and see what’s going on.

I have tried a couple plugins with the same error result - Yoast Duplicate Post and WP Post Page Clone

I have also tried it with no other plugins activated and the same issue happens

Hello @highmark,

Please be advised that duplicated posts by a plugin still cannot be edited with the Pro Editor. You will have to save the page as a template first and then load it to your new page. Please check out this documentation:

By the way, please deactivate your debug mode so that the PHP warnings will no longer display. You can do this by opening the wp-config.php file and adding


define('WP_DEBUG', false);

/* That's all, stop editing! Happy blogging. */

When you revisit the page, you should have some error output describing the issue in more detail.

Hope this helps.

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