Minecraft storage is ‘full’ and I can’t access my world

So what happened is that I hold a world with my friends like one would do. One of them loves exploring the world and heads far on land. One day they were travelling and it crashed my game. When I hopped back on minecraft it said that i ran out of storage, which my minecraft and PlayStation storage was not full. I can not go back on that world since it happened.
ive been trying for a week to figure what was wrong but I could not find out what it was.