Fatal error: Uncaught Error: Class 'yii\web\HttpException' not found in /var/www/html/autocar/vendor/yiisoft/yii2/web/TooManyRequestsHttpException.php:21 Stack trace: #0 {main} thrown in /var/www/html/autocar/vendor/yiisoft/yii2/web/TooManyRequestsHttpException.php on line 21