Fatal error: Uncaught Error: Call to undefined function add_action() in /home/MaksiuZi/public_html/bartektest/wp-content/plugins/preloader-plus/preloader-plus-pro/inc/customizer.php:353 Stack trace: #0 {main} thrown in /home/MaksiuZi/public_html/bartektest/wp-content/plugins/preloader-plus/preloader-plus-pro/inc/customizer.php on line 353