Fatal error: Uncaught ArgumentCountError: Too few arguments to function WP_Widget::__construct(), 0 passed in /var/www/web25697678/html/fussball.lu/wp-includes/class-wp-widget-factory.php on line 61 and at least 2 expected in /var/www/web25697678/html/fussball.lu/wp-includes/class-wp-widget.php:162 Stack trace: #0 /var/www/web25697678/html/fussball.lu/wp-includes/class-wp-widget-factory.php(61): WP_Widget->__construct() #1 /var/www/web25697678/html/fussball.lu/wp-includes/widgets.php(115): WP_Widget_Factory->register('mvp_ad_widget') #2 /var/www/web25697678/html/fussball.lu/wp-content/themes/the-league/widgets/widget-ad.php(9): register_widget('mvp_ad_widget') #3 /var/www/web25697678/html/fussball.lu/wp-includes/class-wp-hook.php(287): mvp_ad_load_widgets('') #4 /var/www/web25697678/html/fussball.lu/wp-includes/class-wp-hook.php(311): WP_Hook->apply_filters(NULL, Array) #5 /var/www/web25697678/html/fussball.lu/wp-includes/plugin.php(478): WP_Hook->do_action(Array) #6 /var/www/web25697678/html/fussball.lu/wp-includes/widgets.php(1765): do_action('widgets_init') #7 /var/www/web25697678/html/fussball.lu/wp-includes/class-wp-hook.php(287): wp_widgets_init('') #8 /var/www/web25697678/html/fussball.lu/wp-includes/class-wp-hook.php(311): WP_Hook->apply_filters(NULL, Array) #9 /var/www/web25697678/html/fussball.lu/wp-includes/plugin.php(478): WP_Hook->do_action(Array) #10 /var/www/web25697678/html/fussball.lu/wp-settings.php(540): do_action('init') #11 /var/www/web25697678/html/fussball.lu/wp-config.php(115): require_once('/var/www/web256...') #12 /var/www/web25697678/html/fussball.lu/wp-load.php(37): require_once('/var/www/web256...') #13 /var/www/web25697678/html/fussball.lu/wp-blog-header.php(13): require_once('/var/www/web256...') #14 /var/www/web25697678/html/fussball.lu/index.php(17): require('/var/www/web256...') #15 {main} thrown in /var/www/web25697678/html/fussball.lu/wp-includes/class-wp-widget.php on line 162