Fatal error: Uncaught Error: Class "yii\rbac\BaseManager" not found in /var/www/html/web/yii/basic/vendor/yiisoft/yii2/rbac/DbManager.php:39 Stack trace: #0 {main} thrown in /var/www/html/web/yii/basic/vendor/yiisoft/yii2/rbac/DbManager.php on line 39