The Sims 3 Causing PC Shut Down

@cloudygreyskies  Those files are too old to be useful, to be honest.  In case you're curious, they're both access violations by TS3.exe—the game or one of its components tried to execute at a memory address that didn't allow it, and Windows put a stop to it.  This isn't specific enough to troubleshoot without more information; the solution can be anything from repairing or reinstalling the game to not using some poorly-designed custom content item.

It's probably irrelevant though: the fact that there aren't any newer files likely means that Windows isn't causing the shutdowns, since it would usually write a crash dump first.  (Still, please disable any cleaner app you have running, and look for more dump files going forward.)  Since this makes a hardware issue much more likely, the next step is hardware monitoring.  Download hwinfo from here:

https://www.hwinfo.com/download/

You don't need to install anything if you don't want to; just choose the Portable version, unzip it, and launch it from Downloads or wherever you want.  (If you would like to install, be sure to click the green button, not the orange one.)  Restart your computer, and don't open any other apps.  Launch hwinfo, choose "sensors only," and click the icon that's a sheet of paper with a + sign to start logging.  Save the file to your desktop for easy access later.

Wait five minutes, then launch Sims 3 and play until you get a shutdown; the log will keep being written until that happens, and the data should be valid up to that point.  When you've restarted your computer, upload the log to a third-party free filehosting site and link it here.  Please leave it in .csv format, or if you use OneDrive to share, please compress it in .zip format instead.