Game is crashing on Start Screen

@ivano003  There are a number of Sims 4 errors listing DirectX 9 as the issue.  So you can try reinstalling DirectX—just download the runtime from Microsoft.

https://www.microsoft.com/en-us/download/details.aspx?id=8109

But the issue may be a recent Windows security update: KB4515384.  A number of players on Windows build 18362 (1903) have found that they're unable to launch their games unless they uninstall this update.  However, security updates exist for a reason, and uninstalling one is never recommended.

If you'd like to try troubleshooting in other ways, I can make some suggestions.  Let me know, and I'll list a few.