Fatal error: Uncaught Error: Undefined constant Elementor\Controls_Manager::ALERT in /srv/users/starpett/apps/starpett/public/wp-content/themes/hello-elementor/includes/settings/settings-header.php:87 Stack trace: #0 /srv/users/starpett/apps/starpett/public/wp-content/plugins/elementor/core/kits/documents/tabs/tab-base.php(43): HelloElementor\Includes\Settings\Settings_Header->register_tab_controls() #1 /srv/users/starpett/apps/starpett/public/wp-content/plugins/elementor/core/kits/documents/kit.php(158): Elementor\Core\Kits\Documents\Tabs\Tab_Base->register_controls() #2 /srv/users/starpett/apps/starpett/public/wp-content/plugins/elementor/includes/base/controls-stack.php(2329): Elementor\Core\Kits\Documents\Kit->register_controls() #3 /srv/users/starpett/apps/starpett/public/wp-content/plugins/elementor/includes/base/controls-stack.php(496): Elementor\Controls_Stack->init_controls() #4 /srv/users/starpett/apps/starpett/public/wp-content/plugins/elementor/includes/base/controls-stack.php(300): Elementor\Controls_Stack->get_stack() #5 /srv/users/starpett/apps/starpett/public/wp-content/plugins/elementor/includes/base/controls-stack.php(2416): Elementor\Controls_Stack->get_controls() #6 /srv/users/starpett/apps/starpett/public/wp-content/plugins/elementor/includes/base/controls-stack.php(1109): Elementor\Controls_Stack->sanitize_settings(Array) #7 /srv/users/starpett/apps/starpett/public/wp-content/plugins/elementor/includes/base/controls-stack.php(2163): Elementor\Controls_Stack->get_data('settings') #8 /srv/users/starpett/apps/starpett/public/wp-content/plugins/elementor/core/base/base-object.php(142): Elementor\Controls_Stack->get_init_settings() #9 /srv/users/starpett/apps/starpett/public/wp-content/plugins/elementor/core/base/base-object.php(40): Elementor\Core\Base\Base_Object->ensure_settings() #10 /srv/users/starpett/apps/starpett/public/wp-content/plugins/elementor/core/kits/manager.php(117): Elementor\Core\Base\Base_Object->get_settings('viewport_mobile') #11 /srv/users/starpett/apps/starpett/public/wp-content/plugins/elementor/core/breakpoints/breakpoint.php(130): Elementor\Core\Kits\Manager->get_current_settings('viewport_mobile') #12 /srv/users/starpett/apps/starpett/public/wp-content/plugins/elementor/core/breakpoints/breakpoint.php(71): Elementor\Core\Breakpoints\Breakpoint->init_value() #13 /srv/users/starpett/apps/starpett/public/wp-content/plugins/elementor/core/breakpoints/breakpoint.php(88): Elementor\Core\Breakpoints\Breakpoint->get_value() #14 /srv/users/starpett/apps/starpett/public/wp-content/plugins/elementor/core/breakpoints/manager.php(195): Elementor\Core\Breakpoints\Breakpoint->is_custom() #15 /srv/users/starpett/apps/starpett/public/wp-content/plugins/elementor/includes/frontend.php(542): Elementor\Core\Breakpoints\Manager->has_custom_breakpoints() #16 /srv/users/starpett/apps/starpett/public/wp-includes/class-wp-hook.php(303): Elementor\Frontend->register_styles('') #17 /srv/users/starpett/apps/starpett/public/wp-includes/class-wp-hook.php(327): WP_Hook->apply_filters(NULL, Array) #18 /srv/users/starpett/apps/starpett/public/wp-includes/plugin.php(470): WP_Hook->do_action(Array) #19 /srv/users/starpett/apps/starpett/public/wp-includes/script-loader.php(2083): do_action('wp_enqueue_scri...') #20 /srv/users/starpett/apps/starpett/public/wp-includes/class-wp-hook.php(303): wp_enqueue_scripts('') #21 /srv/users/starpett/apps/starpett/public/wp-includes/class-wp-hook.php(327): WP_Hook->apply_filters(NULL, Array) #22 /srv/users/starpett/apps/starpett/public/wp-includes/plugin.php(470): WP_Hook->do_action(Array) #23 /srv/users/starpett/apps/starpett/public/wp-includes/general-template.php(3015): do_action('wp_head') #24 /srv/users/starpett/apps/starpett/public/wp-content/themes/hello-elementor/header.php(24): wp_head() #25 /srv/users/starpett/apps/starpett/public/wp-includes/template.php(770): require_once('/srv/users/star...') #26 /srv/users/starpett/apps/starpett/public/wp-includes/template.php(716): load_template('/srv/users/star...', true, Array) #27 /srv/users/starpett/apps/starpett/public/wp-includes/general-template.php(48): locate_template(Array, true, true, Array) #28 /srv/users/starpett/apps/starpett/public/wp-content/plugins/elementor/modules/page-templates/templates/header-footer.php(9): get_header() #29 /srv/users/starpett/apps/starpett/public/wp-includes/template-loader.php(106): include('/srv/users/star...') #30 /srv/users/starpett/apps/starpett/public/wp-blog-header.php(19): require_once('/srv/users/star...') #31 /srv/users/starpett/apps/starpett/public/index.php(17): require('/srv/users/star...') #32 {main} thrown in /srv/users/starpett/apps/starpett/public/wp-content/themes/hello-elementor/includes/settings/settings-header.php on line 87