September 2020
@8293241229 Please disable Origin in-game: hover over your username, select Application Settings, then the Origin in-game header, and disable the option at the top.
If that doesn't help, please move your entire Sims 4 folder out of Documents\Electronic Arts and onto your desktop, that is if you have a Sims 4 folder in Documents. Try to launch the game and see whether it works.
If the game still won't open, please run a dxdiag and attach it to a post.
https://help.ea.com/en-us/help/pc/how-to-gather-dxdiag-information/