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Fatal error: Uncaught ArgumentCountError: Too few arguments to function WP_Widget::__construct(), 0 passed in /homepages/8/d29068427/htdocs/barton-mag.de/wp-includes/class-wp-widget-factory.php on line 61 and at least 2 expected in /homepages/8/d29068427/htdocs/barton-mag.de/wp-includes/class-wp-widget.php:162 Stack trace: #0 /homepages/8/d29068427/htdocs/barton-mag.de/wp-includes/class-wp-widget-factory.php(61): WP_Widget->__construct() #1 /homepages/8/d29068427/htdocs/barton-mag.de/wp-includes/widgets.php(115): WP_Widget_Factory->register('FacebookLikeBox...') #2 /homepages/8/d29068427/htdocs/barton-mag.de/wp-content/plugins/facebook-like-box-widget/facebook-like-box-widget.php(782): register_widget('FacebookLikeBox...') #3 /homepages/8/d29068427/htdocs/barton-mag.de/wp-includes/class-wp-hook.php(292): FacebookLikeBoxInit('') #4 /homepages/8/d29068427/htdocs/barton-mag.de/wp-includes/class-wp-hook.php(316): WP_Hook->apply_filters(NULL, Array) #5 /homepages/8/d29068427/htdocs/barton-mag.de/wp-includes/plugin.php(484): WP_Hook->do_action(Array) #6 /homepages/8/d29068427/htdocs/barton-mag.de/wp-includes/widgets.php(1799): do_action('widgets_init') #7 /homepages/8/d29068427/htdocs/barton-mag.de/wp-includes/class-wp-hook.php(292): wp_widgets_init('') #8 /homepages/8/d29068427/htdocs/barton-mag.de/wp-includes/class-wp-hook.php(316): WP_Hook->apply_filters(NULL, Array) #9 /homepages/8/d29068427/htdocs/barton-mag.de/wp-includes/plugin.php(484): WP_Hook->do_action(Array) #10 /homepages/8/d29068427/htdocs/barton-mag.de/wp-settings.php(560): do_action('init') #11 /homepages/8/d29068427/htdocs/barton-mag.de/wp-config.php(76): require_once('/homepages/8/d2...') #12 /homepages/8/d29068427/htdocs/barton-mag.de/wp-load.php(37): require_once('/homepages/8/d2...') #13 /homepages/8/d29068427/htdocs/barton-mag.de/wp-blog-header.php(13): require_once('/homepages/8/d2...') #14 /homepages/8/d29068427/htdocs/barton-mag.de/index.php(17): require('/homepages/8/d2...') #15 {main} thrown in /homepages/8/d29068427/htdocs/barton-mag.de/wp-includes/class-wp-widget.php on line 162