Fatal error: Uncaught Error: Class 'Elementor\Core\Responsive\Responsive' not found in /home/customer/www/leadup.travel/public_html/wp-content/themes/hello-elementor/includes/settings/settings-header.php:419 Stack trace: #0 /home/customer/www/leadup.travel/public_html/wp-content/plugins/elementor/core/kits/documents/tabs/tab-base.php(43): HelloElementor\Includes\Settings\Settings_Header->register_tab_controls() #1 /home/customer/www/leadup.travel/public_html/wp-content/plugins/elementor/core/kits/documents/kit.php(149): Elementor\Core\Kits\Documents\Tabs\Tab_Base->register_controls() #2 /home/customer/www/leadup.travel/public_html/wp-content/plugins/elementor/includes/base/controls-stack.php(2358): Elementor\Core\Kits\Documents\Kit->register_controls() #3 /home/customer/www/leadup.travel/public_html/wp-content/plugins/elementor/includes/base/controls-stack.php(541): Elementor\Controls_Stack->init_controls() #4 /home/customer/www/leadup.travel/public_html/wp-content/plugins/elementor/includes/base/controls-stack.php(313): in /home/customer/www/leadup.travel/public_html/wp-content/themes/hello-elementor/includes/settings/settings-header.php on line 419