Ultimate Fix 1.63 Problem

Hi, I downloaded the ultimate fix, followed all directions in the installation guide but every time i launch the game I get this message:

"It looks like you have installed an unofficial game modification that does not match your current version of The Sims 3.  We recommend that you either uninstall these game modifications or get updated versions of them – otherwise you may experience crashes or significant bugs.

 Do you want to quit?"

I then click no, the game continues to load but when I get to my family the game crashes while its loading. Please help!

Have you updated your game to the latest version via the launcher?

Also do you have any mods?