Minecraft Support is experiencing extremely high volumes of requests right now and we're working 24/7 to get caught up. Do we have help? You bet, we just added forty new people to our team. Thanks for your patience, we're going as fast as we can to get them in and helping out!

So I was loading into my creative world and my xbox shut off for something I got back on minecraft and I try to go to my creative world and its gone I tried sync old worlds and it's not there?