Game keeps crashing when I go in a certain direction (west) of my world.

For some reason every time where I try to head in a certain direction where most of my  builds and beds are my world freezes and crashes. I cant travel west or else my world crashes. I can travel other directions but not where my world spawn is. The game will crash and set me back where I was originally before. If I make another world it works perfectly fine but the world I worked hard on now crashes. If I try to make a copy of the world it crashes too. Please fix this bug.