eZ Publish中未捕获的PHP异常“未知的处理程序dfs”

Question

I'm getting following error in my eZpublish application while fetching the content using:

$wrapper->content->getFieldValue('short_name', $currentLanguage)->text;

Error:

CRITICAL - Uncaught PHP Exception Symfony\Component\Config\Definition\Exception\InvalidConfigurationException: "Unknown handler dfs" at /var/www/application/releases/v1/wwwroot/vendor/ezsystems/ezpublish-kernel/eZ/Bundle/EzPublishIOBundle/ApiLoader/HandlerFactory.php line 39.

Is there any way to solve this issue.

Thanks in advance.