Fatal error: Uncaught Error: Call to undefined function add_action() in /var/www/html/wp-content/themes/Divi/includes/builder/feature/SplitLibrary.php:47 Stack trace: #0 /var/www/html/wp-content/themes/Divi/includes/builder/feature/SplitLibrary.php(38): ET_Builder_Split_Library->_register_ajax_callbacks() #1 /var/www/html/wp-content/themes/Divi/includes/builder/feature/SplitLibrary.php(28): ET_Builder_Split_Library->__construct() #2 /var/www/html/wp-content/themes/Divi/includes/builder/feature/SplitLibrary.php(354): ET_Builder_Split_Library::instance() #3 {main} thrown in /var/www/html/wp-content/themes/Divi/includes/builder/feature/SplitLibrary.php on line 47