I Broke Minecraft

i broke Minecraft i was trying to figure out what was going on in my event class because it wasn't working correctly but when i went back to the game to activate the method when i activated it all of Minecraft was frozen except the player and the time and the sky still moved but entities wouldn't move i could break blocks but they didn't give anything to me commands stopped working and the console isn't saying anything else it has stopped i just thought it would be cool to share but i should probably delete the world and make a new one