Fatal error: Uncaught Error: Class "yii\db\QueryBuilder" not found in /var/www/html/web/yii/basic/vendor/yiisoft/yii2/db/mssql/QueryBuilder.php:20 Stack trace: #0 {main} thrown in /var/www/html/web/yii/basic/vendor/yiisoft/yii2/db/mssql/QueryBuilder.php on line 20