You need to log into the forums once every 31 days in order to keep your account active (or purchase an inactivity timer). If you have not done either of those, your account gets suspended due to inactivity, and then terminated 10 or 14 days afterwards if you don't unsuspend it.
If your account did get terminated, all of the data on it is gone -- there are no backups. You can sign up for a new hosting account if you wish to host some more stuff, just please remember the inactivity rule and all other rules outlined in the x10hosting Terms of Service (which you agree to when signing up for a hosting account).
If you make another account and plan on being gone for a while, you can purchase an inactivity timer (so you don't need to log into the forums every 31 days)