game crashes every 20-30 minutes

morganxomg​  Look for an update for your motherboard's BIOS.  There's a common crashing issue with newer high-end Intel processors that the board might overclock by default, and a BIOS update sometimes solves the problem.  I have no idea what board you have, let alone whether there's an update, and for that matter I don't know that you actually have this error.  But it's common on your hardware and presents the way you describe it.

If that doesn't help, boot into BIOS and disable CPU Turbo Boost, which will be under Advanced settings and might be called something slightly different.  It should have Turbo in its name though.

If that doesn't help either, please provide a dxdiag so I can look for other causes.  Click Windows key-R, enter dxdiag in the run box, wait for the scan to finish, click "Save all information," and save the file to your desktop.  From there, you can attach it to a reply using the paper clip (Attachment) icon included with the other formatting buttons.

thank you so much for this ! i will try it now. the motherboard i have is MSI PRO Z790-A Max Wifi LGA 1700. here is the dxdiag as well.

thank you again!

morganxomg​  Your dxdiag shows that Razer Cortex is crashing, and that Sims 4 (in DirectX 9 mode) is crashing due to an issue with the Nvidia driver.  That doesn't mean that the overclocking isn't the issue, as it can trigger different types of crashes at different times.  But it might not be, and it certainly could be only one of several problems, with the others being unrelated.

Point is, if changing the BIOS setting doesn't help, or you want to try something else first, uninstall Cortex and see how it goes.  You may be able to reinstall it later; the point is that this particular install isn't working correctly.  And if that alone doesn't help, do a clean uninstall and reinstall of your graphics driver:

https://crinrict.com/blog/2019/02/clean-re-install-of-graphics-drivers-with-display-driver-uninstaller-ddu.html

@puzzleaddict so i've removed razer cortex and it's still crashing. i'm hesistant to change the BIOS setting, as this is the only game that is crashing so often (and at all - no other games i play crash). i've reduced my graphics, tried using the sims 4 camera vs sims 3 camera, and still no luck. i have reinstalled graphic drivers as well and still no luck. ): 

thank you for trying!

also here is my dx diag: i'm thinking i need to do a clean uninstall and reinstall of nvidia? let me know your thoughts. 

morganxomg​  If you'd rather do a clean uninstall and reinstall of the graphics driver, that's perfectly reasonable.  Here's how to do it:

https://crinrict.com/blog/2019/02/clean-re-install-of-graphics-drivers-with-display-driver-uninstaller-ddu.html

You can use the newest driver release:

https://www.nvidia.com/en-us/drivers/details/245673/

If this doesn't help though, I'd change the BIOS setting and see what happens.  It's not a permanent change, so there's no reason not to at least find out whether it helps.  Other games generally don't have this issue, at least as far as I've seen; it's unclear why Sims 4 is still affected some of the time.  But it definitely is in that changing the CPU Turbo Boost setting has helped a number of players.