I am Unable to Open Minecraft MCPE. I will open the app but when it loads to about 75percent or more it will completely freeze and stop loading. I cannot make it continue. 

Sometimes it has been able to load, but when it does within minutes of playing a sever or world, it will completely freeze. The sound (Eg in game Music) Will continue but it visually stops.I have to Close the app entirely but even then it won't load back.