Title: Error with Gutenberg Editor
Last modified: February 22, 2021

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# Error with Gutenberg Editor

 *  Resolved [demiduska](https://wordpress.org/support/users/demiduska/)
 * (@demiduska)
 * [5 years, 4 months ago](https://wordpress.org/support/topic/error-with-gutenberg-editor-2/)
 * Hello ,i got error in Gutenberg editor after update to Yoast 15.8.
    Cant save
   the post: Publishing failed. The response is not a valid JSON response.
 * In console 3 times: Uncaught (in promise) {code: “invalid_json”, message: “The
   response is not a valid JSON response.”}
 * In editor: [http://joxi.ru/krD3LggI47YnvA](http://joxi.ru/krD3LggI47YnvA)
 * How to fix that?
 * Wordpress version: 5.6.2

Viewing 7 replies - 1 through 7 (of 7 total)

 *  Thread Starter [demiduska](https://wordpress.org/support/users/demiduska/)
 * (@demiduska)
 * [5 years, 4 months ago](https://wordpress.org/support/topic/error-with-gutenberg-editor-2/#post-14086238)
 * When deactivated plugin all work fine
 *  [Pcosta88](https://wordpress.org/support/users/pcosta88/)
 * (@pcosta88)
 * [5 years, 4 months ago](https://wordpress.org/support/topic/error-with-gutenberg-editor-2/#post-14086659)
 * Hi [@demiduska](https://wordpress.org/support/users/demiduska/)!
 * `We understand you are experiencing an issue with the plugin in that you are 
   receiving an error of ‘Updating failed. The response is not a valid JSON response.’
 * This error can be related to a number of different issues. Possible causes for
   it include issues with the site’s permalinks, the REST API, or the Gutenberg 
   block editor.
 * We would like some more information.
 * 1. Are all your non-Yoast plugins and themes also updated?
 * 2. If you go to Settings-Permalinks and re-save them does the issue resolve?
 * 3. If you go to SEO-General-Features and disable the Rest API: Head Endpoint,
   does the issue resolve?
 * 4. Are you using the Gutenberg Editor as a plugin?
    -  This reply was modified 5 years, 4 months ago by [Pcosta88](https://wordpress.org/support/users/pcosta88/).
 *  Thread Starter [demiduska](https://wordpress.org/support/users/demiduska/)
 * (@demiduska)
 * [5 years, 4 months ago](https://wordpress.org/support/topic/error-with-gutenberg-editor-2/#post-14086710)
 * 1. Yes
    2. I re-saved and nothing happened. The same problem. 3. Yes, it solved
   the problem. 4. No, inside in WordPress.
 *  Plugin Support [Michael Tiña](https://wordpress.org/support/users/mikes41720/)
 * (@mikes41720)
 * [5 years, 4 months ago](https://wordpress.org/support/topic/error-with-gutenberg-editor-2/#post-14087875)
 * Hi,
 * Since you’ve disabled the Rest API: Head Endpoint feature, are you now able to
   update and save the changes to your posts using the default WordPress block editor?
 *  Thread Starter [demiduska](https://wordpress.org/support/users/demiduska/)
 * (@demiduska)
 * [5 years, 4 months ago](https://wordpress.org/support/topic/error-with-gutenberg-editor-2/#post-14089101)
 * Hi , Yes
 *  [devnihil](https://wordpress.org/support/users/devnihil/)
 * (@devnihil)
 * [5 years, 4 months ago](https://wordpress.org/support/topic/error-with-gutenberg-editor-2/#post-14092709)
 * [@demiduska](https://wordpress.org/support/users/demiduska/) Thanks for confirming
   that this has corrected it. We are going ahead and marking this issue as resolved
   but please let us know if you require any further assistance.
 *  Thread Starter [demiduska](https://wordpress.org/support/users/demiduska/)
 * (@demiduska)
 * [5 years, 4 months ago](https://wordpress.org/support/topic/error-with-gutenberg-editor-2/#post-14092916)
 * Thank you

Viewing 7 replies - 1 through 7 (of 7 total)

The topic ‘Error with Gutenberg Editor’ is closed to new replies.

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 * 7 replies
 * 4 participants
 * Last reply from: [demiduska](https://wordpress.org/support/users/demiduska/)
 * Last activity: [5 years, 4 months ago](https://wordpress.org/support/topic/error-with-gutenberg-editor-2/#post-14092916)
 * Status: resolved