Identity Safe - web

Hi everyone! After connecting to https://identitysafe.norton.com/it the system doesn't find the web page of my vault (the message is in italian of course but it sounds like "Impossible to find the requested web page - it's possible that the requested page was removed, modified or not available at the moment"). I've already tried to disconnect, reboot and reconnect but the problem is always the same: I can't open my vault from the web. It works only the mobile-app. Can everyone help me? Thank you very much!