I have an account that when I upgraded from galaxy s5 to galaxy 9 the game has not worked... was a great game & would have rated it 5 stars if it had moved to the new phone. As it is it's no longer a good idea if u ever upgrade ur phone. They finally found my account & were able to fix the problem... apparently there was a new restriction added while I wasn't playing during the eruption & that had to be dealt with 1st.