Upgrades Ludo Unity Project (Photon + PlayFab)

I have a Ludo game online source code. I want a few upgrades for my game. + Continue playing when other players OnPause event. (Press Home button, make a call, text message ...). The remaining players will continue playing with the bot until they return( Automatic roll and move the tokens). Players leaving will continue playing when they return. Currently my games will be disconnected when a player presses home or makes a call.