Minecraft World Deleted

Hello. Last night I decided to go onto my Minecraft World. My world is on Xbox One. When my world was loading my xbox froze so I decided to turn my xbox off. I waited a couple of minutes and then started Minecraft back up. When I went onto the menu I couldn't see the world. I am very sad because Ive been working on this world since 2015 on Xbox 360. I would really like to get it back. Thank you and please HELP!!!!!1*strong text*