I uninstalled ONEDRIVE and now i cant get my game to open up

jaydream​  The saves and other data may be in the old location:

C:\Users\your username\OneDrive\Documents\Electronic Arts\The Sims 4

You can open that location in a File Explorer window by clicking This PC in the left panel and then choosing the successive folders.

If your files aren't there, they may be on onedrive.com, which you can access without reenabling OneDrive on your computer.

If that doesn't help either, please see this guide to missing user content:

⚙️[PC] Sims 4 Missing User Content (saves, mods, etc.) | EA Forums - 12636780