Loading Forever! ?

It worked perfectly well with my dads phone but right now in my phone, it wont load! It gets 100% finished and then starts saying there was a problem with my connection even though my wifi is great and my phone is pretty decent, rating it 2 stars because I love the game, its just that it wont play on my phone rather than my dads...

Misaki Senpai about DRAGON BALL Z DOKKAN BATTLE, v3.1.1