Mine too. It's been a few days for me and it still says that it's not available. The spanish version works fine, but I can't open the english one! --_--
Hello, could you please give us a bit more of info so we can help you? Are you playing on Android? There are no screens thay show the "not available" message so we are a bit lost here haha
On the Android version, the game might take a bit more time to load after changing the language settings, so please be patient if that's the case. It's an issue that only comes up on certain devices, and we can't do much about it :(