Crashing immediately when I leave a world or server

Anytime I leave any world or server, I crash immediately. I have tried so many different things to attempt to fix this and it's still unresolved. The crashing started to occur after the Nether Update. The more updates, the more I crash. I need to know if there is any way possible to fix my crashing issue. I have an iPad version 13.7. Please help me! Thank you!