Fatal error: Uncaught Error: Call to undefined function add_action() in /usr/local/www/wordpress/wp-content/plugins/.old/sitepress-multilingual-cms/inc/hacks.php:4
Stack trace:
#0 {main}
thrown in /usr/local/www/wordpress/wp-content/plugins/.old/sitepress-multilingual-cms/inc/hacks.php on line 4