The lag crashes my game

I was playing minecraft in 10 minutes ago but this horrible lag has come and nothing is making it lag. Well i restart my phone to see if it works but nothing happend i dont know what happened. Even this message comes while save and quit minecraft. It says "minecarft isnt responding" and even a black screen pops when i exit the game for completely. Something is wrong mojang. Please help i cant play minecarft... I try playing it bit this error sign comes and says minecarft isnt responding. I try three things 1. Clear pages what i was using apps. 2. Restart or take battery off. And 3. Uninstall and install back. And nothing works. I was thinking is the game.