Title: PHP8 causing errors
Last modified: May 13, 2023

---

# PHP8 causing errors

 *  Resolved [r3ddog](https://wordpress.org/support/users/r3ddog/)
 * (@r3ddog)
 * [3 years ago](https://wordpress.org/support/topic/php8-causing-errors/)
 * Hello,
 * After updating PHP from 7.4 to 8.1 this errors started to appear :
 *     ```wp-block-code
       "Warning: Undefined property: stdClass::$url in /htdocs/wp-content/plugins/wordpress-seo/inc/class-addon-manager.php on line 798
   
       Warning: Undefined property: stdClass::$renewalUrl in /htdocs/wp-content/plugins/wordpress-seo/inc/class-addon-manager.php on line 813
   
       Warning: Undefined property: stdClass::$version in /htdocs/wp-content/plugins/wordpress-seo/inc/class-addon-manager.php on line 816
   
       Warning: Undefined property: stdClass::$name in /htdocs/wp-content/plugins/wordpress-seo/inc/class-addon-manager.php on line 817
   
       Warning: Undefined property: stdClass::$lastUpdated in /htdocs/wp-content/plugins/wordpress-seo/inc/class-addon-manager.php on line 819
   
       Warning: Undefined property: stdClass::$storeUrl in /htdocs/wp-content/plugins/wordpress-seo/inc/class-addon-manager.php on line 820
   
       Warning: Undefined property: stdClass::$changelog in /htdocs/wp-content/plugins/wordpress-seo/inc/class-addon-manager.php on line 823
   
       Warning: Undefined property: stdClass::$renewalUrl in /htdocs/wp-content/plugins/wordpress-seo/inc/class-addon-manager.php on line 813
   
       Warning: Undefined property: stdClass::$version in /htdocs/wp-content/plugins/wordpress-seo/inc/class-addon-manager.php on line 816
   
       Warning: Undefined property: stdClass::$name in /htdocs/wp-content/plugins/wordpress-seo/inc/class-addon-manager.php on line 817
   
       Warning: Undefined property: stdClass::$lastUpdated in /htdocs/wp-content/plugins/wordpress-seo/inc/class-addon-manager.php on line 819
   
       Warning: Undefined property: stdClass::$storeUrl in /htdocs/wp-content/plugins/wordpress-seo/inc/class-addon-manager.php on line 820
   
       Warning: Undefined property: stdClass::$changelog in /htdocs/wp-content/plugins/wordpress-seo/inc/class-addon-manager.php on line 823
   
       Warning: Undefined property: stdClass::$renewalUrl in /htdocs/wp-content/plugins/wordpress-seo/inc/class-addon-manager.php on line 813
   
       Warning: Undefined property: stdClass::$version in /htdocs/wp-content/plugins/wordpress-seo/inc/class-addon-manager.php on line 816
   
       Warning: Undefined property: stdClass::$name in /htdocs/wp-content/plugins/wordpress-seo/inc/class-addon-manager.php on line 817
   
       Warning: Undefined property: stdClass::$lastUpdated in /htdocs/wp-content/plugins/wordpress-seo/inc/class-addon-manager.php on line 819
   
       Warning: Undefined property: stdClass::$storeUrl in /htdocs/wp-content/plugins/wordpress-seo/inc/class-addon-manager.php on line 820
   
       Warning: Undefined property: stdClass::$changelog in /htdocs/wp-content/plugins/wordpress-seo/inc/class-addon-manager.php on line 823
   
       Warning: Undefined property: stdClass::$renewalUrl in /htdocs/wp-content/plugins/wordpress-seo/inc/class-addon-manager.php on line 813
   
       Warning: Undefined property: stdClass::$version in /htdocs/wp-content/plugins/wordpress-seo/inc/class-addon-manager.php on line 816
   
       Warning: Undefined property: stdClass::$name in /htdocs/wp-content/plugins/wordpress-seo/inc/class-addon-manager.php on line 817
   
       ........"
       ```
   
 * Is there a way to fix this ?
 * Thanks

Viewing 1 replies (of 1 total)

 *  Plugin Support [Maybellyne](https://wordpress.org/support/users/maybellyne/)
 * (@maybellyne)
 * [3 years ago](https://wordpress.org/support/topic/php8-causing-errors/#post-16737999)
 * Hello [@r3ddog](https://wordpress.org/support/users/r3ddog/),
 * Thanks for using the Yoast SEO free plugin. These errors are related to outdated
   Yoast SEO Premium/add-on plugins. Please contact our support team for assistance
   if you have an active premium subscription. [How can I get premium support?](https://yoast.com/help/support/#premium?utm_source=support&utm_medium=forum&utm_campaign=support-link)
 * This forum is reserved for supporting the free version of Yoast SEO, so this 
   thread has been marked as resolved per the [forum guidelines](https://wordpress.org/support/guidelines/#do-not-post-about-commercial-products).

Viewing 1 replies (of 1 total)

The topic ‘PHP8 causing errors’ is closed to new replies.

 * ![](https://ps.w.org/wordpress-seo/assets/icon-256x256.gif?rev=3419908)
 * [Yoast SEO - Advanced SEO with real-time guidance and built-in AI](https://wordpress.org/plugins/wordpress-seo/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/wordpress-seo/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/wordpress-seo/)
 * [Active Topics](https://wordpress.org/support/plugin/wordpress-seo/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/wordpress-seo/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/wordpress-seo/reviews/)

 * 1 reply
 * 2 participants
 * Last reply from: [Maybellyne](https://wordpress.org/support/users/maybellyne/)
 * Last activity: [3 years ago](https://wordpress.org/support/topic/php8-causing-errors/#post-16737999)
 * Status: resolved