Using Version 3.190.gpl, a user with 4 domains logs in as their main domain (their user account). They open virtual email (https://domainname.net:10000/virtual-server/) and see a list of all 4 domains. When they click on the name of any of their domains, it links them to https://domainname.net:10000/virtual-server/view_domain.cgi?dom=[domain-.... They are presented with a "Error - File not found" in their browser. There is no view_domain.cgi file in the webmin directory, either. Either the domain name should not be linked or the view_domain.cgi file needs to be included.
Everything is fine when logged in as a root user.