Thank you for replying!
I followed your steps exactly and unfortunately the same error still appeared when I tried to open the game. I only put one file of cc into the game that I know is up to date, and my game still refuses to open. I know that I have mods enabled. Very strange ☹️
The game still refuses to open?
Have you tried playing the game without mods and custom content installed and it plays just fine?
If yes, does it refuse to open when you've added a mod or piece of custom content?
If this is the case, try resetting your Sims 4 folder
You can do this by moving your Sims 4 folder to the desktop or renaming it Sims4Old.
Launch the game so it creates a new Sims 4 folder and try a test game to make sure things are running okay.
If it's running/playing okay, then start coping back the files and folders noted in Crinrict's article linked below:
Resetting the game to factory settings without reinstalling
https://sims4.crinrict.com/eng/2014/09/resetting-the-game-to-factory-settings-without-reinstalling/
