@winterkittenx
The saved game may be corrupted, but it may be something else. Try the following tips if you haven't already.
1. Reset your Sims 4 folder, try a new game without the mods folder or anything else added in.
Rename your Sims 4 folder to Sims 4_Backup. The game will create a new one next time you play.
- Renaming it or moving it to the desktop will help you have a backup and keep your Sims 4 files safe.
Repair the Sims 4 game. In Origin > Game Library - right-click on Sims 4 and select Repair.
Try playing the game, this will create a new Sims 4 folder. Try playing a new save, if everything is playing okay, try playing your broken save. If it's still giving you issues, then do not save it.
However if it does work, then start putting the files back. (list of files and folders below).
- Options.ini (User game settings)
- Tray Folder (Sims/Houses/Commercial lots and rooms)
- Screenshots/Videos/Custom music
- Rest of the save games, if any.
(leave out slot_00000001.save which is the autosave. It is not used anymore.)
- Custom content like clothing, hair, skins, makeup
- Mods (Put these back one by one to make sure they all still work)
More information - Resetting the game to factory settings without reinstalling
https://answers.ea.com/t5/Technical-Issues-PC/READ-FIRST-Troubleshooting-your-Game/m-p/3621199#Resetting
If you move or rename the Sims 4 folder, the game will no longer be able to find it. When you go to play the game it will create a new folder.
This will rule out problems with your current saved games and mods. If mods are the issue. Go through the mods folder and replace the outdated mods and custom content.
Finding Problem CC
http://modthesims.info/wiki.php?title=Game_Help:Finding_Problem_Custom_Content
2. Turn off Origin in game:
In Origin - Application Settings - Origin In-Game. Turn this off. As sometimes it causes issues with the game.
3. Making sure graphics drivers are up to date.
Finding devices and updating drivers on your PC
https://help.ea.com/en-us/help/pc/finding-devices-and-updating-drivers/
After updating the graphics drivers, restart the computer.
4. Start the game in Windowed mode, via Origin:
In Origin > Games Library - Right-click on Sims 4 and select Game Properties. In the Command Line Arguments, add the following text: -w and click Okay.
5. Try running Origin As Administrator:
Right-click on the Origin icon on the desktop and select Run as Administrator.
If the above doesn't help, please share your computer's information with us.
https://help.ea.com/en-us/help/pc/how-to-gather-dxdiag-information/
You can attach the text file to your post or reply directly. (To attach a file click the browse button just above the Preview button, at the bottom of the message box.)
With this information we can see if there's any hardware or driver issues.