Vesta Control Panel - Forum

I have installed vesta and inserted my clients, I have created 30 accounts in total. Now I have the problem that
every time I insert a invalid domain like 'prova.com' (that isn't associated to none of the clients), appears the index of an other
client. I noted also that if I put only the IP address of the server doesn't appear the index of vesta, but only
the index of the same client. What should I do to resolve this?

Nothing that you write is clear at all.
prova.com doesn't seem to be invalid domain at all. Please try to explain your problem with better description