It stopped working

This is by far my favorite game on my phone. But yesterday it started acting up after the maintenance. It wouldnt let me play anymore. Id get to the games main screen at the start then when it starts loading once it gets about the quarter of the loaded the screen would turn dark and stop loading. Then the screen would be unresponsive and it wouldnt load. I keep trying different things to get it working but it keeps doing the same thing over and over. Please fix this I really enjoy playing the game.

Baseball lover 10 about DRAGON BALL Z DOKKAN BATTLE, v3.1.2