Fatal error: Uncaught ArgumentCountError: Too few arguments to function WP_Widget::__construct(), 0 passed in /homepages/16/d480564253/htdocs/schs/wp-includes/class-wp-widget-factory.php on line 61 and at least 2 expected in /homepages/16/d480564253/htdocs/schs/wp-includes/class-wp-widget.php:162 Stack trace: #0 /homepages/16/d480564253/htdocs/schs/wp-includes/class-wp-widget-factory.php(61): WP_Widget->__construct() #1 /homepages/16/d480564253/htdocs/schs/wp-includes/widgets.php(115): WP_Widget_Factory->register('MO_Popular_Post...') #2 /homepages/16/d480564253/htdocs/schs/wp-content/themes/invent/framework/framework.php(735): register_widget('MO_Popular_Post...') #3 /homepages/16/d480564253/htdocs/schs/wp-includes/class-wp-hook.php(307): MO_Framework->register_widgets('') #4 /homepages/16/d480564253/htdocs/schs/wp-includes/class-wp-hook.php(331): WP_Hook->apply_filters(NULL, Array) #5 /homepages/16/d480564253/htdocs/schs/wp-includes/plugin.php(476): WP_Hook->do_action(Array) #6 /homepages/16/d480564253/htdocs/schs/wp-includes/widgets.php(1854): do_action('widgets_init') #7 /homepages/16/d480564253/htdocs/schs/wp-includes/class-wp-hook.php(307): wp_widgets_init('') #8 /homepages/16/d480564253/htdocs/schs/wp-includes/class-wp-hook.php(331): WP_Hook->apply_filters(NULL, Array) #9 /homepages/16/d480564253/htdocs/schs/wp-includes/plugin.php(476): WP_Hook->do_action(Array) #10 /homepages/16/d480564253/htdocs/schs/wp-settings.php(598): do_action('init') #11 /homepages/16/d480564253/htdocs/schs/wp-config.php(104): require_once('/homepages/16/d...') #12 /homepages/16/d480564253/htdocs/schs/wp-load.php(50): require_once('/homepages/16/d...') #13 /homepages/16/d480564253/htdocs/schs/wp-blog-header.php(13): require_once('/homepages/16/d...') #14 /homepages/16/d480564253/htdocs/schs/index.php(17): require('/homepages/16/d...') #15 {main} thrown in /homepages/16/d480564253/htdocs/schs/wp-includes/class-wp-widget.php on line 162