Portfolio items can't be edited anymore

Hey ictsnor,
You have two serious errors:

Failed to load resource: the server responded with a status of 400 () /wp-admin/admin-ajax.php:1 

VM3437:397 Uncaught TypeError: a[b].target.className.indexOf is not a function
    at bu.u.ti (eval at xhr.onreadystatechange (post.php?post=782&action=edit:318), <anonymous>:397:321)
u.ti @ wp-seo-post-scraper-751.min.js?ver=7.5.1:25

But I can’t investigate further because many features are hidden.
You could try Try disabling your plugins. If that resolves the issue, reactivate each one individually until you find the cause.
Otherwise please grant full admin access.

Best regards,
Mike

Hi,
I found that editing a page also resulted the error:

Uncaught TypeError: a[b].target.className.indexOf is not a function

even though you can use the editor, and deactivating Yoast solves.

But the page doesn’t have the 400 Bad Request Error on admin-ajax like the portfolio items, one thing I note is that you can’t save Quick CSS or Theme setting.

Do you recall trying to protect the wordpress admin with any code in the .htaccess?
I will keep investigating the admin-ajax error.

Best regards,
Mike

Hi,

Thanks for the info. Where did you host the site? Please ask your hosting provider if the admin-ajax.php is black listed by the mod_security rule. There are previous threads with exactly the same issue where the mod_sec rule blocks certain resources, in this case the admin-ajax.php file, when it exceeds the requests limit.

Best regards,
Ismael