Fatal error: Uncaught ArgumentCountError: Too few arguments to function WP_Widget::__construct(), 0 passed in /home/www/koch-media.dk/wp-includes/class-wp-widget-factory.php on line 62 and at least 2 expected in /home/www/koch-media.dk/wp-includes/class-wp-widget.php:163 Stack trace: #0 /home/www/koch-media.dk/wp-includes/class-wp-widget-factory.php(62): WP_Widget->__construct() #1 /home/www/koch-media.dk/wp-includes/widgets.php(115): WP_Widget_Factory->register('SlideshowPlugin...') #2 /home/www/koch-media.dk/wp-content/plugins/slideshow-jquery-image-gallery/classes/SlideshowPluginWidget.php(153): register_widget('SlideshowPlugin...') #3 /home/www/koch-media.dk/wp-includes/class-wp-hook.php(308): SlideshowPluginWidget::registerWidget('') #4 /home/www/koch-media.dk/wp-includes/class-wp-hook.php(332): WP_Hook->apply_filters(NULL, Array) #5 /home/www/koch-media.dk/wp-includes/plugin.php(517): WP_Hook->do_action(Array) #6 /home/www/koch-media.dk/wp-includes/widgets.php(1854): do_action('widgets_init') #7 /home/www/koch-media.dk/wp-includes/class-wp-hook.php(308): wp_widgets_init('') #8 /home/www/koch-media.dk/wp-includes/class-wp-hook.php(332): WP_Hook->apply_filters(NULL, Array) #9 /home/www/koch-media.dk/wp-includes/plugin.php(517): WP_Hook->do_action(Array) #10 /home/www/koch-media.dk/wp-settings.php(667): do_action('init') #11 /home/www/koch-media.dk/wp-config.php(138): require_once('/home/www/koch-...') #12 /home/www/koch-media.dk/wp-load.php(50): require_once('/home/www/koch-...') #13 /home/www/koch-media.dk/wp-blog-header.php(13): require_once('/home/www/koch-...') #14 /home/www/koch-media.dk/index.php(65): require('/home/www/koch-...') #15 {main} thrown in /home/www/koch-media.dk/wp-includes/class-wp-widget.php on line 163