Title: Yoast plugin breaks website
Last modified: October 14, 2022

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# Yoast plugin breaks website

 *  Resolved [daanw85](https://wordpress.org/support/users/daanw85/)
 * (@daanw85)
 * [3 years, 7 months ago](https://wordpress.org/support/topic/yoast-plugin-breaks-website/)
 * Hi everyone.
 * I’m dealing with a problem which seems to be a conflict between Polylang and 
   Yoast.
 * The moment I activate the Yoast plugin, on several of my pages the content disappears.(
   it’s now deactivated because of it.) It looks like it has something to do with
   the permalinks. When I save the permalinks again it seems to do the trick, but
   the day after the problem occurs again.
 * Really hope anyone has a solution to this.
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Fyoast-plugin-breaks-website%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

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

 *  [Rohan Sadanandan](https://wordpress.org/support/users/rohans123/)
 * (@rohans123)
 * [3 years, 7 months ago](https://wordpress.org/support/topic/yoast-plugin-breaks-website/#post-16101710)
 * Hi [@daanw85](https://wordpress.org/support/users/daanw85/),
 * Thanks for reaching out.
 * In order to troubleshoot the issue, could you please check the following steps?
 * 1. Can you confirm your server has all the right requirements? This guide explains
   more: [https://yoast.com/help/plugin-requirements/](https://yoast.com/help/plugin-requirements/)
 * 2. Can you confirm that all the Yoast & non-Yoast plugins and themes are updated
   to the latest version? In most cases, these steps resolve this issue, but if 
   the issue remains:
 * 3. Can you check for any PHP errors related to Yoast SEO in your email or in 
   the server error logs? You can find the errors yourself by enabling WP_DEBUG 
   in your wp-config.php file. Once you have enabled it, reproduce the error, and
   check for any Yoast SEO errors in the debug.log file. You can also check with
   your web host to see if there’s a related error in your PHP error logs.
 * 4. Often, we see problems occur in combination with another plugin or theme. 
   The fastest way to rule out any conflict is to **deactivate all non-Yoast plugins
   except Polylang and switch to a standard theme** like [Twenty Twenty](https://wordpress.org/themes/twentytwenty/).
 * Please test this on your development or staging site if you have one. If not,
   we recommend using the [Health Check & Troubleshooting](https://wordpress.org/plugins/health-check/)
   plugin. This plugin has a troubleshooting mode, which **does not affect normal
   visitors to your site**.
 * If you’re unfamiliar with checking for conflicts, we’d like to point you to a
   step-by-step guide that will walk you through the process: [How to check for plugin conflicts](https://yoast.com/help/how-to-check-for-plugin-conflicts/)
 * If you feel uncomfortable doing this yourself or if this does not solve your 
   issue, our [Yoast SEO Premium plugin](https://yoast.com/wordpress/plugins/seo/)
   comes with one year of (technical) support.
 *  [Jeroen Rotty](https://wordpress.org/support/users/jeroenrotty/)
 * (@jeroenrotty)
 * [3 years, 7 months ago](https://wordpress.org/support/topic/yoast-plugin-breaks-website/#post-16117278)
 * This thread was marked resolved due to a lack of activity, but you’re always 
   welcome to re-open the topic. Please read [this post](https://wordpress.org/support/topic/read-this-before-your-post/)
   before [opening a new request](https://wordpress.org/support/plugin/wordpress-seo#new-post).
 *  Thread Starter [daanw85](https://wordpress.org/support/users/daanw85/)
 * (@daanw85)
 * [3 years, 7 months ago](https://wordpress.org/support/topic/yoast-plugin-breaks-website/#post-16119058)
 * Hi, sorry for my late response.
 * 1: The meet the requirements
    2: Everything is updated 3: When running debug 
   mode: this happens when I activate Yoast:
 *     ```
       Notice: Functie WP_Service_Worker_Caching_Routes::register werd verkeerd aangeroepen. De configuratiesleutel voor plugins is verouderd. Definieer Workbox plugin configuratie op het hoogste niveau. Lees Foutopsporing in WordPress voor meer informatie. (Dit bericht is toegevoegd in versie 0.6.) in /data/sites/web/integronnl/subsites/integron.nl/wp-includes/functions.php on line 5833
   
       Notice: Functie WP_Service_Worker_Caching_Routes::register werd verkeerd aangeroepen. De configuratiesleutel voor plugins is verouderd. Definieer Workbox plugin configuratie op het hoogste niveau. Lees Foutopsporing in WordPress voor meer informatie. (Dit bericht is toegevoegd in versie 0.6.) in /data/sites/web/integronnl/subsites/integron.nl/wp-includes/functions.php on line 5833
   
       Notice: Functie WP_Service_Worker_Caching_Routes::register werd verkeerd aangeroepen. De configuratiesleutel voor plugins is verouderd. Definieer Workbox plugin configuratie op het hoogste niveau. Lees Foutopsporing in WordPress voor meer informatie. (Dit bericht is toegevoegd in versie 0.6.) in /data/sites/web/integronnl/subsites/integron.nl/wp-includes/functions.php on line 5833
   
       Notice: Functie WP_Service_Worker_Caching_Routes::register werd verkeerd aangeroepen. De configuratiesleutel voor plugins is verouderd. Definieer Workbox plugin configuratie op het hoogste niveau. Lees Foutopsporing in WordPress voor meer informatie. (Dit bericht is toegevoegd in versie 0.6.) in /data/sites/web/integronnl/subsites/integron.nl/wp-includes/functions.php on line 5833
   
       (google translated the above: Function WP_Service_Worker_Caching_Routes::register was called incorrectly. The plugin configuration key is out of date. Define Workbox plugin configuration at the top level. Read Debugging in WordPress for more information. (This post was added in version 0.6.)
   
       Deprecated: Constant FILTER_SANITIZE_STRING is deprecated in /data/sites/web/integronnl/subsites/integron.nl/wp-content/plugins/wordpress-seo/src/conditionals/third-party/elementor-edit-conditional.php on line 22
   
       Deprecated: Constant FILTER_SANITIZE_STRING is deprecated in /data/sites/web/integronnl/subsites/integron.nl/wp-content/plugins/wordpress-seo/src/conditionals/third-party/elementor-edit-conditional.php on line 28
       ```
   
 * 4: I’ve tried to just run Yoast and Polylang and the problem only occurs then.
 * Thanks for helping out. I hope there’s an easy fix.
 *  Thread Starter [daanw85](https://wordpress.org/support/users/daanw85/)
 * (@daanw85)
 * [3 years, 7 months ago](https://wordpress.org/support/topic/yoast-plugin-breaks-website/#post-16119061)
 * Specific URL i tested was this one btw: [https://www.integron.nl/inzicht/](https://www.integron.nl/inzicht/)
 *  Thread Starter [daanw85](https://wordpress.org/support/users/daanw85/)
 * (@daanw85)
 * [3 years, 6 months ago](https://wordpress.org/support/topic/yoast-plugin-breaks-website/#post-16138288)
 * Hi, forgot to set the status to ‘not resolved’ again, so I guess it’s has been
   quiet because of that.
 * The issue is still not resolved. Can anyone be of any help with the above debug
   info?
 * Help will be greatly appriciated :).
    -  This reply was modified 3 years, 6 months ago by [daanw85](https://wordpress.org/support/users/daanw85/).
 *  Plugin Support [Maybellyne](https://wordpress.org/support/users/maybellyne/)
 * (@maybellyne)
 * [3 years, 6 months ago](https://wordpress.org/support/topic/yoast-plugin-breaks-website/#post-16139568)
 * Thanks, [@daanw85](https://wordpress.org/support/users/daanw85/), for sharing
   the error log. And I’m sorry that our plugin caused a problem on your site. There’s
   an open bug report that is under review by our product team.
 * **What’s next?**
    Our product team will assess the severity of the issue and 
   assign a priority level to the report. Our developers work on the highest priority
   issues first. We cannot give you an estimate of when they’ll start working on
   the issue.
 * If you have any further information that may affect the prioritization or help
   our development team solve this bug, please feel invited to reply to this forum
   topic, and we’ll share the information with our product team. leave a comment
   or subscribe to the GitHub report to get updates on the issue.
 * [https://github.com/Yoast/wordpress-seo/issues/17991](https://github.com/Yoast/wordpress-seo/issues/17991)
    -  This reply was modified 3 years, 6 months ago by [Maybellyne](https://wordpress.org/support/users/maybellyne/).
 *  [Jeroen Rotty](https://wordpress.org/support/users/jeroenrotty/)
 * (@jeroenrotty)
 * [3 years, 6 months ago](https://wordpress.org/support/topic/yoast-plugin-breaks-website/#post-16151784)
 * This thread was marked resolved due to a lack of activity, but you’re always 
   welcome to re-open the topic.

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

The topic ‘Yoast plugin breaks website’ is closed to new replies.

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## Tags

 * [conflict](https://wordpress.org/support/topic-tag/conflict/)
 * [permalinks](https://wordpress.org/support/topic-tag/permalinks/)
 * [Yoast](https://wordpress.org/support/topic-tag/yoast/)

 * 7 replies
 * 4 participants
 * Last reply from: [Jeroen Rotty](https://wordpress.org/support/users/jeroenrotty/)
 * Last activity: [3 years, 6 months ago](https://wordpress.org/support/topic/yoast-plugin-breaks-website/#post-16151784)
 * Status: resolved