Warning from WordPress

I got the same message.

In my email from WP there is a stack trace at the bottom of the page which gives more details: In my case it seems to relate to Yoast_Alerts.

Error Details
=============
An error of type E_ERROR was caused in line 500 of the file /web/MY_SITE/wp-content/plugins/wordpress-seo/wp-seo-main.php. Error message: Uncaught Error: Class ‘Yoast_Alerts’ not found in /web/MY_SITE/wp-content/plugins/wordpress-seo/wp-seo-main.php:500
Stack trace:
#0 /web/MY_SITE/wp-content/plugins/wordpress-seo/wp-seo.php(48): require_once()
#1 /web/MY_SITE/wp-settings.php(362): include_once(‘/web/MY_SITE…’)
#2 /web/MY_SITE/wp-config.php(105): require_once(‘/web/MY_SITE…’)
#3 /web/MY_SITE/wp-load.php(37): require_once(‘/web/MY_SITE…’)
#4 /web/MY_SITE/wp-admin/admin-ajax.php(22): require_once(‘/web/MY_SITE…’)
#5 {main}
thrown

Can you please confirm you are using the most recent Yoast v11.6? You can learn more about updating here: https://kb.yoast.com/kb/how-can-i-update-my-free-plugin/

@markkelly1982 Please create a new issue if you are experiencing a similar problem as this helps us in tracking as this can be caused by many different variables (WordPress version, other plugins, etc).

This thread has been marked as resolved due to lack of activity.

You’re always welcome to re-open this topic. Please read this post before opening a new request.

Thanks for understanding!