Facebook I’d for games when 2 people share an ipad

MY daughter and I share an iPad

WE both want to play Seekers Notes Hidden Mystery by Mytona

YOu have to logon to the game with Facebook in order to save your game progression

I have tried switching Facebook accounts but it still logs on to the game with her Facebook account ID even we have separate game ids.

Game Apps from Facebook default to her account information and I cannot play Seekers Notes Hidden Mystery under her Facebook login from the shared Ipad.

CAn you help?

THank You.