Fatal error: Uncaught ArgumentCountError: Too few arguments to function WP_Widget::__construct(), 0 passed in /data01/virt19833/domeenid/www.xlcases.ee/htdocs/wp-includes/class-wp-widget-factory.php on line 62 and at least 2 expected in /data01/virt19833/domeenid/www.xlcases.ee/htdocs/wp-includes/class-wp-widget.php:163 Stack trace: #0 /data01/virt19833/domeenid/www.xlcases.ee/htdocs/wp-includes/class-wp-widget-factory.php(62): WP_Widget->__construct() #1 /data01/virt19833/domeenid/www.xlcases.ee/htdocs/wp-includes/widgets.php(115): WP_Widget_Factory->register('znn_pop_Widget') #2 /data01/virt19833/domeenid/www.xlcases.ee/htdocs/wp-content/themes/zenon-lite/lib/includes/widgets.php(12): register_widget('znn_pop_Widget') #3 /data01/virt19833/domeenid/www.xlcases.ee/htdocs/wp-includes/class-wp-hook.php(310): znn_pop_widgets('') #4 /data01/virt19833/domeenid/www.xlcases.ee/htdocs/wp-includes/class-wp-hook.php(334): WP_Hook->apply_filters(NULL, Array) #5 /data01/virt19833/domeenid/www.xlcases.ee/htdocs/wp-includes/plugin.php(517): WP_Hook->do_action(Array) #6 /data01/virt19833/domeenid/www.xlcases.ee/htdocs/wp-includes/widgets.php(1858): do_action('widgets_init') #7 /data01/virt19833/domeenid/www.xlcases.ee/htdocs/wp-includes/class-wp-hook.php(310): wp_widgets_init('') #8 /data01/virt19833/domeenid/www.xlcases.ee/htdocs/wp-includes/class-wp-hook.php(334): WP_Hook->apply_filters(NULL, Array) #9 /data01/virt19833/domeenid/www.xlcases.ee/htdocs/wp-includes/plugin.php(517): WP_Hook->do_action(Array) #10 /data01/virt19833/domeenid/www.xlcases.ee/htdocs/wp-settings.php(632): do_action('init') #11 /data01/virt19833/domeenid/www.xlcases.ee/htdocs/wp-config.php(90): require_once('/data01/virt198...') #12 /data01/virt19833/domeenid/www.xlcases.ee/htdocs/wp-load.php(50): require_once('/data01/virt198...') #13 /data01/virt19833/domeenid/www.xlcases.ee/htdocs/wp-blog-header.php(13): require_once('/data01/virt198...') #14 /data01/virt19833/domeenid/www.xlcases.ee/htdocs/index.php(17): require('/data01/virt198...') #15 {main} thrown in /data01/virt19833/domeenid/www.xlcases.ee/htdocs/wp-includes/class-wp-widget.php on line 163