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Fatal error
: Uncaught Error: Undefined class constant 'ALERT' in /htdocs/wp-content/plugins/sticky-header-effects-for-elementor/modules/transparent/module.php:50 Stack trace: #0 /htdocs/wp-includes/class-wp-hook.php(326): SheHeader\Modules\Transparent\Module->register_controls(Object(Elementor\Element_Section)) #1 /htdocs/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters('', Array) #2 /htdocs/wp-includes/plugin.php(517): WP_Hook->do_action(Array) #3 /htdocs/wp-content/plugins/elementor/includes/base/controls-stack.php(1662): do_action('elementor/eleme...', Object(Elementor\Element_Section), Array) #4 /htdocs/wp-content/plugins/elementor/includes/elements/section.php(1330): Elementor\Controls_Stack->end_controls_section() #5 /htdocs/wp-content/plugins/elementor/includes/base/controls-stack.php(2358): Elementor\Element_Section->register_controls() #6 /htdocs/wp-content/plugins/elementor/includes/base/controls-stack.php(541): Elementor\Controls_Stack->init_controls() #7 /htdocs/wp-content/plugins/elementor/includes/ in
/htdocs/wp-content/plugins/sticky-header-effects-for-elementor/modules/transparent/module.php
on line
50