Updating failed. The response is not a valid JSON response.
This error appears when edit and update your posts or pages on your WordPress website. You will see message saying “The response is not a valid JSON response” and updating that page would fail. In this article, I will show you how to fix the invalid JSON error in WordPress.
I getting this error when I move my wordpress website to another server.
First please confirm your home and siteurl is ok on database wp_options table.
Please go to Settings => Permalinks page. From here, you need to review the WordPress permalink options. Please select “Post name” option form Permalink Settings and click on the Save Changes button to store your settings.
Also please confirm those code are available on the .htaccess file.
Now site is ready to edit post or page from WordPress admin.
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