Webserver is wrong configured - wrong document root
Please adjust the settings of the web server. If the service is operated on a Plesk system, you will find these settings in the Hosting Settings under Document root.
Here are examples of development, test and productive environments:
- httpdocs/dev/o/public
- httpdocs/dev/s/public
- httpdocs/dev/m/public
- httpdocs/beta/public
- httpdocs/test/public
- httpdocs/public/public
- httpdocs/prod/public