Fatal error: Uncaught Error: Call to undefined function is_plugin_active() in /usr/www/users/abentekj/wordpress/wp-content/themes/page-builder-framework/inc/customizer/customizer-functions.php:92 Stack trace: #0 /usr/www/users/abentekj/wordpress/wp-content/themes/page-builder-framework/inc/init.php(33): require_once() #1 /usr/www/users/abentekj/wordpress/wp-content/themes/page-builder-framework/functions.php(271): require_once('/usr/www/users/...') #2 /usr/www/users/abentekj/wordpress/wp-settings.php(663): include('/usr/www/users/...') #3 /usr/www/users/abentekj/wordpress/wp-config.php(137): require_once('/usr/www/users/...') #4 /usr/www/users/abentekj/wordpress/wp-load.php(50): require_once('/usr/www/users/...') #5 /usr/www/users/abentekj/wordpress/wp-blog-header.php(13): require_once('/usr/www/users/...') #6 /usr/www/users/abentekj/wordpress/index.php(17): require('/usr/www/users/...') #7 {main} thrown in /usr/www/users/abentekj/wordpress/wp-content/themes/page-builder-framework/inc/customizer/customizer-functions.php on line 92