Title: Plugin not activating after update
Last modified: March 19, 2018

---

# Plugin not activating after update

 *  Resolved [zainvirgo](https://wordpress.org/support/users/zainvirgo/)
 * (@zainvirgo)
 * [8 years, 2 months ago](https://wordpress.org/support/topic/plugin-not-activating-after-update/)
 * Hello,
    I have updated the plugin Yoast SEO, after that it give white screen 
   then i deactivated via FTP and rollbacked the plugin to previous version, when
   i tried to activate it, it is not activating anymore and giving this error.
 * Warning: include(): Failed opening ‘/var/www/vhosts/mysite.com/httpdocs/woocommerce/
   shared/plugins/wordpress-seo/inc/options/class-wpseo-option-xml.php’ for inclusion(
   include_path=’.:/opt/plesk/php/7.1/share/pear’) in /var/www/vhosts/mysite.com/
   httpdocs/woocommerce/shared/plugins/wordpress-seo/vendor/composer/ClassLoader52.
   php on line 186
 * Warning: call_user_func() expects parameter 1 to be a valid callback, class ‘
   WPSEO_Option_XML’ not found in /var/www/vhosts/mysite.com/httpdocs/woocommerce/
   shared/plugins/wordpress-seo/inc/options/class-wpseo-options.php on line 48
 * Fatal error: Uncaught Error: Call to a member function maybe_add_option() on 
   null in /var/www/vhosts/mysite.com/httpdocs/woocommerce/shared/plugins/wordpress-
   seo/inc/options/class-wpseo-options.php:284 Stack trace: #0 /var/www/vhosts/mysite.
   com/httpdocs/woocommerce/shared/plugins/wordpress-seo/wp-seo-main.php(158): WPSEO_Options::
   ensure_options_exist() #1 /var/www/vhosts/mysite.com/httpdocs/woocommerce/shared/
   plugins/wordpress-seo/wp-seo-main.php(91): _wpseo_activate() #2 /var/www/vhosts/
   mysite.com/httpdocs/woocommerce/releases/20180307101515/wp-includes/class-wp-
   hook.php(286): wpseo_activate(”) #3 /var/www/vhosts/mysite.com/httpdocs/woocommerce/
   releases/20180307101515/wp-includes/class-wp-hook.php(310): WP_Hook->apply_filters(”,
   Array) #4 /var/www/vhosts/mysite.com/httpdocs/woocommerce/releases/20180307101515/
   wp-includes/plugin.php(453): WP_Hook->do_action(Array) #5 /var/www/vhosts/mysite.
   com/httpdocs/woocommerce/releases/20180307101515/wp-admin/plugins.php(174): do_action(‘
   activate_wordpr…’) #6 {main} throw in /var/www/vhosts/mysite.com/httpdocs/woocommerce/
   shared/plugins/wordpress-seo/inc/options/class-wpseo-options.php on line 284
 * I’m not able to understand this can you please elaborate this to me?
 * Thanks in advance
 * Regards,
    Zaheen

Viewing 3 replies - 1 through 3 (of 3 total)

 *  [Md Mazedul Islam Khan](https://wordpress.org/support/users/mazedulislamkhan/)
 * (@mazedulislamkhan)
 * [8 years, 2 months ago](https://wordpress.org/support/topic/plugin-not-activating-after-update/#post-10091693)
 * In order to better assist you, we’ll need more information.
    - Are you using the latest WordPress version?
    - If you manually install the Yoast SEO plugin, does this resolve the issue?
 *  Thread Starter [zainvirgo](https://wordpress.org/support/users/zainvirgo/)
 * (@zainvirgo)
 * [8 years, 2 months ago](https://wordpress.org/support/topic/plugin-not-activating-after-update/#post-10096397)
 * Thanks for your reply.
 * Yes i’m using the latest version of WordPress. Yes i tried to install plugin 
   manually still not able to activate. Is there any way to activate the plugin 
   manually not via WordPress?
 * Thanks
 *  [MariusG](https://wordpress.org/support/users/marius_codeinwp/)
 * (@marius_codeinwp)
 * [8 years, 2 months ago](https://wordpress.org/support/topic/plugin-not-activating-after-update/#post-10097127)
 * Please try to [check for conflicts](https://kb.yoast.com/kb/how-to-check-for-plugin-conflicts).
   By this, we mean activating Yoast SEO while all the other plugins are disabled,
   to determine if the issue is caused by an incompatibility.
 * Please inform us of the results.

Viewing 3 replies - 1 through 3 (of 3 total)

The topic ‘Plugin not activating after update’ 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/)

## Tags

 * [Yoast SEO Plugin](https://wordpress.org/support/topic-tag/yoast-seo-plugin/)

 * 3 replies
 * 3 participants
 * Last reply from: [MariusG](https://wordpress.org/support/users/marius_codeinwp/)
 * Last activity: [8 years, 2 months ago](https://wordpress.org/support/topic/plugin-not-activating-after-update/#post-10097127)
 * Status: resolved