Suddenly I'm unable to edit a website; I get this error: "1. There is already a website or sub / aliasdomain with this domain name. There is already a subdomain with these settings.". I have some aliasdomain pointing to the website subdomain but there are no alias/sub domains with the same name. (Debian Wheezy/Sid) ISPConfig 3.1.1
Maybe you have the domain module enabled and the domain of the website is missing under Client > domains?
I'm logged in as admin and I cannot find any "domain module" checkbox and I have no "domains" choice in "Client". System > CP Users > admin > Module - shows only: dns, mail, tools, vm, help, admin, sites, dashboard, monitor, client System > Interface > tab Domains > Use the domain limits in client module to add new domains - is unchecked System > Interface > tab Sites > Create subdomains as web site - is unchecked System > Interface > tab Sites > Create aliasdomains as web site - is unchecked
Then there must be a duplicate domain or subdomain. You can check that directly with phpmyadmin in the dbispconfi database, the table is wev_domain and the column is domain.
Searching in web_domain table I found no duplicates but I noticed that one of the alias-domains pointing to the uneditable domain existed in both types (alias and vhost). I renamed the unused vhost of that alias-domain and that solved.