I uninstalled the game because of the phone storage problem. When I decided to reinstall the game, the download process was taking forever to finish and I have to reopening the game for many times to make it work. Another big problem is that I was forced to go through the whole tutorial all over again, causing me to create new account. Now what made me highly unsatisfied was the Facebook login error. This problem made me unable to link with my old account and developers are ignoring my question.