The server looks like it started having some issues around 4AM EST. The site is back up now, but we still have to perform a reboot to ensure everything is cleared out and working properly again. We will do that at 9AM.
I do apologize for this issue, we hate to have the site go offline, and do our best to prevent it. However, sometimes, it does manage to catch us off guard. We will do our best to fix everything that could have caused this in the meantime. Thank you for your patience.