What a screwy app

I just downloaded this app and I already got two new realms but then it crashed so I got back on it and I lost everything(that means 0 pearls and coins) except for the blue mermaid!!!!!!!!!!!! Whats up with that? I would give it zero stars if I could! It even said when I first opened it " this game may crash" I thought that was a hack.............it wasnt

Future readers of this, I have a message for you: DO NOT GET THIS APP

Banana minion girl about Mermaid World, v1.12.2