I can’t go into my world anymore

I’ve had a world for a really long time and one of main reasons why I kept minecraft was because I loved that one world but all of a sudden everytime I try to press the world it glitches me out of the entire app. I haven’t been able to play in that world ever since which really sucks. I have no idea what’s wrong with it, but none of my other worlds are acting like that. It’s just that one world.