My game and console are crashing when a friend joins my world.

Hello, my Minecraft keeps crashing whenever a friend joins my world. It was fine when were playing on the non beta version of "Minecraft". The crashing occurred a 2-3 days later after updating the game and playing on the beta version. I've tried uninstalling and reinstalling several times. I've follow and unfollow to Xbox Insider Hub to see if I could still retrieve the corrupted world unfortunately no luck. I say my world is corrupted because we've tried starting a new world and even played on old Xbox 360 saves, those still work except for this one world. The world functions fine when I'm playing alone. Is there a way to salvage this world? Because we've already put in a lot of hours. Also I've tried hard reseting my console too. The current version 1.5.0.0

Thanks for any feedback.