Re: Sims 3 white blank screen
@elimaximoff Please move your entire Sims 3 folder out of Documents > Electronic Arts and onto your desktop. When you open the launcher, a clean folder will spawn with no content. Don't add anything to it yet; just see whether you can get far enough to start a new save. Let me know either way.
If you still get the white screen, please also let me know whether you have iCloud Drive enabled.