I have a 7th generation kindle fire and every time I attempt to open it is shows the loading screen and then just crashes

On my kindle fire generation 7 every time I attempt to open Minecraft it shows the loading screen and then just crashes. 

I have 2 survival Minecraft survival worlds with not very much on it, and I have a creative world with over 200 mbs and a lot on it. 

So if you could help me open Minecraft and rid of that but that would be very helpful.

Thank you, Qenry