Game crashes when i try to load up a world

I have a creative world that has 50.8 megabytes of storage taken up, and every time I try to go on the world, it crashes and says "The software was closed because an error occurred". I did manage to copy the world, and it has the same problem, but the fact that I did copy it probably means that the world isn't corrupted and that it could possibly be fixed. When the problem first happened I was on the world building when it suddenly crashed, it was just a minor inconvenience, and I decided to get back on tomorrow. When the next day came I tried to load up the world but it crashed as I explained before. I'm not sure how this works but I hope this issue gets resolved that the world means a lot to me.