Fatal error: Uncaught Error: Undefined class constant 'ALERT' in /goodvalley/wp-content/themes/hello-elementor/includes/settings/settings-header.php:87 Stack trace: #0 /goodvalley/wp-content/plugins/elementor/core/kits/documents/tabs/tab-base.php(43): HelloElementor\Includes\Settings\Settings_Header->register_tab_controls() #1 /goodvalley/wp-content/plugins/elementor/core/kits/documents/kit.php(159): Elementor\Core\Kits\Documents\Tabs\Tab_Base->register_controls() #2 /goodvalley/wp-content/plugins/elementor/includes/base/controls-stack.php(2326): Elementor\Core\Kits\Documents\Kit->register_controls() #3 /goodvalley/wp-content/plugins/elementor/includes/base/controls-stack.php(509): Elementor\Controls_Stack->init_controls() #4 /goodvalley/wp-content/plugins/elementor/includes/base/controls-stack.php(313): Elementor\Controls_Stack->get_stack() #5 /goodvalley/wp-content/plugins/elementor/includes/base/controls-stack.php(2413): Elementor\Controls_Stack->get_controls() #6 /goodvalley/wp-content/plugins/elementor/includes/base/ in /goodvalley/wp-content/themes/hello-elementor/includes/settings/settings-header.php on line 87