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This way, all your configurations will remain intact and the culprit will be gone. Then delete the culprit theme or plugin from your website.

But if you have a backup in place, this won’t be a problem.Īfter you deactivate the plugins and themes and figure out which plugin or theme is causing the error, you can restore your site back to normal. You could lose some of your configurations. So in this section, we will help you figure out whether a theme or a plugin is causing the JSON response error on your website.įirst, a small disclosure: Deactivating the plugins and themes may cause your site to break. Theme and plugin conflict is a common cause of WordPress errors.

ℹ️ No matter which variation you see, the solutions are the same.ĭeactivate plugins and themes to find conflicts

And a simple, “The response is not a valid JSON response.” error appears when you are uploading an image.

The response is not a valid JSON response.”

This one appears when you are trying to publish a post: “Publishing failed.

You will see this variation when you are trying to update a post: “Updating failed.

In the next section, we are going to explore these causes and figure out which one led to the error on your website.īut before we proceed to the next section, it’s worth noting that WordPress shows different variations of the same JSON error. htaccess file corruption, REST API conflict, etc. It could be a bug in a plugin or theme, an issue with the SSL certificate.

The answer is that there is more than one cause. You must be wondering: What causes the miscommunication or lack of communication between your website and the server?

If, for some reason, the server doesn’t respond in JSON format or doesn’t respond at all, then WordPress throws “The response is not a valid JSON response.” error. When you upload an image or publish or update a post on your WordPress website, WordPress communicates the request to your web server. The Response is Not a Valid JSON Response.” error? 💣