Fatal error: Uncaught Error: Class "yii\authclient\OAuth2" not found in /var/www/html/prod/vendor/yiisoft/yii2-authclient/src/clients/Yandex.php:49 Stack trace: #0 {main} thrown in /var/www/html/prod/vendor/yiisoft/yii2-authclient/src/clients/Yandex.php on line 49