There was a problem loading this world.

I was playing the game when I decided to use an app that places finished buildings, I only used 2, the rest are all my buildings with my girlfriend

When I logged into the game again the message "There was a problem loading this world." And since then I can't fix it, I've tried cleaning the data and nothing, I cleaned the world and nothing, I removed the textures and nothing too, it's the only world that has the problem, I've already been playing for weeks with my girlfriend, what do I do?