Note your websites still exist as files on x10Hosting.com, so log into DirectAdmin and DOWNLOAD A BACKUP OF YOUR SITE NOW.
Perhaps x10Hosting needs to pay a bill or some other simple explanation. But, you should have a backup of your website anyway, right? And, with no one able to load their websites there should be some bandwidth available to download your backup.
Just being prudent here, this is not an editorial comment against x10Hosting as I'd like to load my website as well.
Pintwin0173