Sims 3 Unofficial game?

Hi, i have done everything it said fro the patch but when i click on it it says 'this version has already been installed' because i have generations and town life, but when i click on play in the launcher a message comes up and says 'it looks like you have installed an unofficial game mod that does not match your current version of the Sims 3. we recommend that you either i uninstall these game modifications or get updated versions of them- otherwise you may experience crashes and significant bugs. do you want to quit?' what am i supposed to do?
thanks

Hello,

In order to fix this error, please apply this Fix: https://games4theworld.forumotion.com/t752-the-sims-3-ultimate-fix-should-fix-most-of-your-problems

If you have any problems applying it, please watch this help -video: https://games4theworld.forumotion.com/t1889-how-to-apply-the-the-sims-3-ultimate-fix-instruction-video-new

Good luck and please let us know if you have any more problems during the process!