Board Thread:Love Live! School Idol Festival Lounge/@comment-26328619-20150420024136/@comment-11148831-20150420092112

This is an error you get when you're transferring from Android to iOS or vice versa when the account still has love gems. But you said there are no love gems. That's weird.

You can try emailing kLab and ask about it. I don't guarantee fast replies though.