Please find below a list of issues that some of you may have encountered and some possible solutions.
Please note that all the issues are not part of this list, and that the list is not exhaustive: it’ll be updated at a later stage.
Problems with migration from Gface
Download the game on Steam and try one more time.
Problems migrating from Steam
1. Log out from My.com game Center
2.Log in to your steam account and stat the game from the library, this will start the My.com Game Center.
Make sure that your Steam authorization is active in the Game Center. If not – close the Game Center and try again.
I didn’t find the right solution from the Internet.