Fatal error: Class 'Concrete5_Controller_AttributeType_Text' not found in

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I am getting following error whilst installing ver. 5.6.3.1 on a web server:

Fatal error: Class 'Concrete5_Controller_AttributeType_Text' not found in /web/htdocs/www.sitename.it/home/newcms/concrete/models/attribute/types/text/controller.php on line 4

Is there anyone who can guide us to the right direction please ?