Re: [CURRENT ISSUE] Sims 4 Unable to Start, Game Data Missing or Damaged
@Junillustrates If OneDrive is running on this computer, whether you use it or not, please try pausing syncing. You can find the option by right-clicking the cloud icon in the lower-right corner of the screen.
If that doesn't help, please move the entire Sims 4 folder out of Documents > Electronic Arts and onto your desktop. If it copies instead of moving, or you get an error when trying to move it, stop here and let me know.
Otherwise, when you launch the game, if it launches, a clean folder will spawn with no content. (Your saves and other content will be intact in the folder you moved but temporarily not read by the game.) Don't add anything to the new folder yet; just let me know whether you can get far enough to start a new save and play in live mode for a bit.