Make sure that you have created a Roadhouse ID with your email, or that your account was previously linked to Facebook, then try the following:
Exit the game, go to "Apps" and tap the game icon. Then, select "Uninstall".
Access the Google Play Store, download the game again and reopen it.
Click ‘Login’ when prompted with the Create a Roadhouse Id pop up.
Choose either the ‘Login with Facebook’ button or the ‘Login with Email’ button on the next screen.
Please note that there are many different Android devices out there with different UI/settings menus and formats. Procedures and visuals may be different depending on the type of the device and the OS.