Fatal error: Uncaught Error: Call to undefined function add_action() in /usr/local/www/wordpress/wp-content/plugins/.old/themehunk-customizer/oneline-lite/customizer/custom-customizer.php:13 Stack trace: #0 {main} thrown in /usr/local/www/wordpress/wp-content/plugins/.old/themehunk-customizer/oneline-lite/customizer/custom-customizer.php on line 13