Your account is suspended for inactivity, just login to
https://x10hosting.com/login and unsuspend yourself.
You are required to login to the account at least once every 30 days to keep it active, this is how you "pay" for free hosting, failing to do so will lead to suspension and later termination. Note that logging in via the above link is the ONLY place to login to mark the account as active.
You should also have gotten emails about this.