Fatal error: Uncaught Error: Class "OOUI\ToggleWidget" not found in /var/www/html/w/vendor/oojs/oojs-ui/php/widgets/ToggleSwitchWidget.php:8 Stack trace: #0 {main} thrown in /var/www/html/w/vendor/oojs/oojs-ui/php/widgets/ToggleSwitchWidget.php on line 8