Never log into your main Game Center or Facebook account on a modded IPA. If you'd like to move forward, let me know: for nostalgia? What is your device model iOS version Do you have a Mac or Windows PC available to help with the installation?

Note: Sideloaded apps using a free Apple ID typically need to be re-installed every 7 days unless your device is jailbroken. The "Pro" Alternative: Asphalt 8: Airborne+