Fatal error: Uncaught Error: Call to undefined function add_action() in /home/fhuedu6/public_html/wp-content/themes/flatsome/inc/functions/function-custom-css.php:686 Stack trace: #0 {main} thrown in /home/fhuedu6/public_html/wp-content/themes/flatsome/inc/functions/function-custom-css.php on line 686