Crash when tnt blows up netherrack

It first started when i made a city and was blowing up tnt griefing it
I went over to a never spiral and put under 10 pieces of tnt in there after a few seconds it crashed and i went to my home screen i went back into minecraft tapped my map and when it loaded after 4 seconds it crashed and went back to the home screen i tried getting back in 17 times but each time it kept crashing