UPDATE: Web Host is live again! Problem solved! Well, this is embarrassing. pocketmine.net, our main website, is out of bandwidth. Yes, our website is 509-OUT-OF-BANDWIDTH. So many visitors we must've chewed up a few thousand gigabytes in a month! What's worse is that @shoghicp, who controls both the web hosting and the DNS, is also away, and scheduled to be away without any internet connection for a few days to weeks. So the website will have to be down for a while. Sorry for the inconvenience caused! If you wish to get PocketMine, then please visit our Github repo github.com/PocketMine/PocketMine-MP to get the latest version.