Fatal error: Uncaught Error: Call to undefined function add_action() in /home/oxygenco/prod/wordpress/wp-content/plugins/sitepress-multilingual-cms/inc/icl-admin-notifier.php:12 Stack trace: #0 {main} thrown in /home/oxygenco/prod/wordpress/wp-content/plugins/sitepress-multilingual-cms/inc/icl-admin-notifier.php on line 12