Sims 4 Randomly Quitting?

@MaddieTiddy  Your dxdiag crashed and is missing a lot of information, at least some of which may be relevant.  Definitely relevant is that your Windows build is over two years old now.  Is there a reason you haven't updated yet?  At this point, updating through the usual Windows settings interface may not work; there's a more reliable way to do it, but it would be better to see what else is in your dxdiag first.

Please start by running a couple of basic checks on your Windows system files.  Here's how:

• Hit Windows key-X
• Choose either “PowerShell (Administrator)” or “Command prompt (Administrator),” whichever option is offered
• Inside the window that appears, copy and paste “DISM.exe /Online /Cleanup-image /Restorehealth” without quotes into the window, and enter
• The system will start validating soon. If it throws an error, please list it here
• After it reaches 100%, hit Windows key-X again
• Again, choose “PowerShell (Administrator)” or “Command prompt (Administrator)”
• Inside the window, copy and paste “sfc /scannow” without quotes into the window, and enter
• Post the message you receive here

Restart your computer, and run a new dxdiag.  And please let me know if you have a reason not to update Windows.