Minecraft crashes when opening the inventory or a chest?

So I play with a friend in the world. He plays on the Xbox and I on the phone with the Pocket Edition and if I want to open my inventory there or a chest crashes on my cell phone minecraft. What can this be?

Presumably, your inventory is corrupt (or the data that ultimately maps your inventory).

Maybe die, so that the inventory (hopefully) reset.

The app crashes so synonymous if I want to open a chest

Yes, because that's when your inventory opens.

Have tried it still crashes

Then try on a new score, if the problem exists as well.

Problem found a verbuggtes item was the trigger

Lies mostly on the bad phone. It's best to ban all apps (except Whatsapp, phone, etc.) in the background and close all open apps. Maybe it will work then