[05-Dec-2018 15:00:45 UTC] PHP Fatal error: Uncaught Error: Call to undefined function add_action() in /home/writethebook/public_html/wp-content/themes/author/inc/customizer.php:3 Stack trace: #0 {main} thrown in /home/writethebook/public_html/wp-content/themes/author/inc/customizer.php on line 3