Please clarify that is this mobile app it could apply to the previous rugby manager game, right?

Hi
Please clarify that is this mobile app it could apply to the previous rugby manager version , right?
What happen was , when I using my mobile to log in the rugby-manager website, which re-direct to the app store and ask me to download the app version however it download 's app is not able to log in to my playing version.
I want to continue playing my team in old version, please advise me how to do.
Thanks!
Albo
On computer, enable "Play with Facebook" in game settings.
Then do the same in the mobile app and your account will be loaded.