Why does Minecraft keep crashing

And try uninstalling the app and reinstalling, restarting your iPad; i.e. the usual steps.

Make sure you have the latest app update. Contact the developer to report the issue.

See:

If an app on your iPhone or iPad stops responding, closes unexpectedly, or won’t open - Apple Support

I don’t know. Minecraft is not an Apple product. You probably should call Minecraft customer support and ask them.

Somehow I don't think we’ll be hearing back from this individual.