Fatal error: Uncaught Error: Undefined class constant 'NOTICE' in /var/www/clients/client36/web87/web/wp-content/plugins/header-footer-elementor/inc/widgets-manager/widgets/navigation-menu/navigation-menu.php:1840 Stack trace: #0 /var/www/clients/client36/web87/web/wp-content/plugins/header-footer-elementor/inc/widgets-manager/widgets/navigation-menu/navigation-menu.php(159): HFE\WidgetsManager\Widgets\NavigationMenu\Navigation_Menu->register_pro_promotion_controls() #1 /var/www/clients/client36/web87/web/wp-content/plugins/elementor/includes/base/controls-stack.php(2329): HFE\WidgetsManager\Widgets\NavigationMenu\Navigation_Menu->register_controls() #2 /var/www/clients/client36/web87/web/wp-content/plugins/elementor/includes/base/controls-stack.php(496): Elementor\Controls_Stack->init_controls() #3 /var/www/clients/client36/web87/web/wp-content/plugins/elementor/includes/base/widget-base.php(177): Elementor\Controls_Stack->get_stack() #4 /var/www/clients/client36/web87/web/wp-content/plugins/elementor/includes/base/contr in /var/www/clients/client36/web87/web/wp-content/plugins/header-footer-elementor/inc/widgets-manager/widgets/navigation-menu/navigation-menu.php on line 1840