Your website may just be experiencing temporary downtime. Just hang in there, and your website will probably be back up.
The problem with downtime is a possibility for all websites across the internet, but the likelihood of it happening at x10Hosting is decreasing as we upgrade to more powerful, reliable, stable servers.
Yes I cannot open my site either. I submited a support ticket and the chap said that "they are aware and are working on it."
Not fun! But at least it's not something I did to make my site come down!
Oh, does anyone know what all this "Credit" stuff is about? Like I just got 202 credits, which is nice, but what are they for?