This kept happening a few years ago and now is happening again. It's some kind of miscommunication between xbox and the game. They (ea tech) keep telling people to contact xbox but round and round we go. A work around is to launch a multiplayer game, close it, then try opening the Sims. Works for me but makes ZERO sense why this keeps happening. Last time it lined up with a weird issue with sims delivery and everytime it updated, I couldn't launch the game. I don't know how it was resolved last time, it has been working fine for a while until this last update. Come on EA.