Fatal error: Uncaught Error: Undefined class constant 'ALERT' in /data/web/virtuals/262461/virtual/www/domains/schmitt-praha.cz/wp-content/plugins/essential-addons-for-elementor-lite/includes/Extensions/Liquid_Glass_Effect.php:188 Stack trace: #0 /data/web/virtuals/262461/virtual/www/domains/schmitt-praha.cz/wp-includes/class-wp-hook.php(309): Essential_Addons_Elementor\Extensions\Liquid_Glass_Effect->register_controls(Object(Elementor\Element_Section)) #1 /data/web/virtuals/262461/virtual/www/domains/schmitt-praha.cz/wp-includes/class-wp-hook.php(331): WP_Hook->apply_filters(NULL, Array) #2 /data/web/virtuals/262461/virtual/www/domains/schmitt-praha.cz/wp-includes/plugin.php(474): WP_Hook->do_action(Array) #3 /data/web/virtuals/262461/virtual/www/domains/schmitt-praha.cz/wp-content/plugins/elementor/includes/base/controls-stack.php(1610): do_action('elementor/eleme...', Object(Elementor\Element_Section), Array) #4 /data/web/virtuals/262461/virtual/www/domains/schmitt-praha.cz/wp-content/plugins/elementor/includes/element in /data/web/virtuals/262461/virtual/www/domains/schmitt-praha.cz/wp-content/plugins/essential-addons-for-elementor-lite/includes/Extensions/Liquid_Glass_Effect.php on line 188