Game crashes when trying to open a world or connect to a server

I just updated my Minecraft PE on my iOS device to version 1.2. The game launches but when I try to connect to a world the game crashes. I tried three times with the same world, then I deleted it and tried creating a new world and it still crashes.

Next, I tried logging in to all three servers. Mineplex just disconnects me, but Lifeboat and InPVP crash when they load up.

Version 1.2 is not in the list so I had to choose 1.2.0.81 as my choice which I hope is correct.