Fatal error: Uncaught Error: Call to undefined function add_action() in /home/.sites/133/site516/web/WP/wp-content/plugins/sitepress-multilingual-cms/inc/plugins-integration.php:3
Stack trace:
#0 {main}
  thrown in /home/.sites/133/site516/web/WP/wp-content/plugins/sitepress-multilingual-cms/inc/plugins-integration.php on line 3