Fatal error: Uncaught ArgumentCountError: Too few arguments to function WP_Widget::__construct(), 0 passed in /home/users/1/araigakuen/web/humanpower/httpdocs/wp/wp-includes/class-wp-widget-factory.php on line 62 and at least 2 expected in /home/users/1/araigakuen/web/humanpower/httpdocs/wp/wp-includes/class-wp-widget.php:163 Stack trace: #0 /home/users/1/araigakuen/web/humanpower/httpdocs/wp/wp-includes/class-wp-widget-factory.php(62): WP_Widget->__construct() #1 /home/users/1/araigakuen/web/humanpower/httpdocs/wp/wp-includes/widgets.php(123): WP_Widget_Factory->register('language_select...') #2 /home/users/1/araigakuen/web/humanpower/httpdocs/wp/wp-content/plugins/language-selector-related/languageselectorrelatedwidget.php(58): register_widget('language_select...') #3 /home/users/1/araigakuen/web/humanpower/httpdocs/wp/wp-includes/class-wp-hook.php(341): languageSelectorRealted_register_widgets('') #4 /home/users/1/araigakuen/web/humanpower/httpdocs/wp/wp-includes/class-wp-hook.php(365): WP_Hook->apply_filters(NULL, Array) #5 /home/users/1/araigakuen/web/humanpower/httpdocs/wp/wp-includes/plugin.php(522): WP_Hook->do_action(Array) #6 /home/users/1/araigakuen/web/humanpower/httpdocs/wp/wp-includes/widgets.php(1884): do_action('widgets_init') #7 /home/users/1/araigakuen/web/humanpower/httpdocs/wp/wp-includes/class-wp-hook.php(341): wp_widgets_init('') #8 /home/users/1/araigakuen/web/humanpower/httpdocs/wp/wp-includes/class-wp-hook.php(365): WP_Hook->apply_filters(NULL, Array) #9 /home/users/1/araigakuen/web/humanpower/httpdocs/wp/wp-includes/plugin.php(522): WP_Hook->do_action(Array) #10 /home/users/1/araigakuen/web/humanpower/httpdocs/wp/wp-settings.php(742): do_action('init') #11 /home/users/1/araigakuen/web/humanpower/httpdocs/wp/wp-config.php(96): require_once('/home/users/1/a...') #12 /home/users/1/araigakuen/web/humanpower/httpdocs/wp/wp-load.php(50): require_once('/home/users/1/a...') #13 /home/users/1/araigakuen/web/humanpower/httpdocs/wp/wp-blog-header.php(13): require_once('/home/users/1/a...') #14 /home/users/1/araigakuen/web/humanpower/httpdocs/index.php(17): require('/home/users/1/a...') #15 {main} thrown in /home/users/1/araigakuen/web/humanpower/httpdocs/wp/wp-includes/class-wp-widget.php on line 163