Fatal error: Uncaught Error: Class 'yii\helpers\BaseHtmlPurifier' not found in /var/www/html/autocar/vendor/yiisoft/yii2/helpers/HtmlPurifier.php:32 Stack trace: #0 {main} thrown in /var/www/html/autocar/vendor/yiisoft/yii2/helpers/HtmlPurifier.php on line 32