Fatal error: Uncaught ArgumentCountError: Too few arguments to function WP_Widget::__construct(), 0 passed in /var/www/clients/client1/web18/web/wp-includes/class-wp-widget-factory.php on line 62 and at least 2 expected in /var/www/clients/client1/web18/web/wp-includes/class-wp-widget.php:163 Stack trace: #0 /var/www/clients/client1/web18/web/wp-includes/class-wp-widget-factory.php(62): WP_Widget->__construct() #1 /var/www/clients/client1/web18/web/wp-includes/widgets.php(115): WP_Widget_Factory->register('AlxTabs') #2 /var/www/clients/client1/web18/web/wp-content/themes/anew/functions/widgets/alx-tabs.php(411): register_widget('AlxTabs') #3 /var/www/clients/client1/web18/web/wp-includes/class-wp-hook.php(310): alx_register_widget_tabs('') #4 /var/www/clients/client1/web18/web/wp-includes/class-wp-hook.php(334): WP_Hook->apply_filters(NULL, Array) #5 /var/www/clients/client1/web18/web/wp-includes/plugin.php(517): WP_Hook->do_action(Array) #6 /var/www/clients/client1/web18/web/wp-includes/widgets.php(1858): do_action('widgets_init') #7 /var/www/clients/client1/web18/web/wp-includes/class-wp-hook.php(310): wp_widgets_init('') #8 /var/www/clients/client1/web18/web/wp-includes/class-wp-hook.php(334): WP_Hook->apply_filters(NULL, Array) #9 /var/www/clients/client1/web18/web/wp-includes/plugin.php(517): WP_Hook->do_action(Array) #10 /var/www/clients/client1/web18/web/wp-settings.php(632): do_action('init') #11 /var/www/clients/client1/web18/web/wp-config.php(90): require_once('/var/www/client...') #12 /var/www/clients/client1/web18/web/wp-load.php(50): require_once('/var/www/client...') #13 /var/www/clients/client1/web18/web/wp-blog-header.php(13): require_once('/var/www/client...') #14 /var/www/clients/client1/web18/web/index.php(17): require('/var/www/client...') #15 {main} thrown in /var/www/clients/client1/web18/web/wp-includes/class-wp-widget.php on line 163