Sims 3 Fitgirl Repack

Sims 3 Fitgirl Repack

I downloaded the FitGirl repack of The Sims 4 and every time I tap on one of the packs or ... Should I get The Sims 4 expansions or The Sims 3 game?

https://www.sayatale.com/group/saya-tale-group/discussion/c613d1cd-1ee2-45b9-b05a-bf356c036f3b