Mods and custom content can sometimes cause conflicts. Try removing them:
You need to be on the final patch level. There are two versions: sims 3 ultimate fix
This guide is your final stop. We will cover every single fix, from basic patches to advanced GPU configurations. Mods and custom content can sometimes cause conflicts
Because the game stopped receiving official updates in 2014, it cannot recognize modern graphics cards (like the RTX 30/40 series). *OUTDATED* ULTIMATE SIMS 3 FIX GUIDE (2021) sims 3 ultimate fix