Can't install sims3packs (images included)

Hi, I created an account solely to find some help with this problem   :newfag: . Ever since installing the expansions and cracks/patches (which worked great, kudos!) onto my purchased base game, I can't install sims3packs anymore. I've tried double clicking them from my web downloads folder, and then my downloads folder in the sims 3 folder. I'm installing store content files, the regal living set, and the now & then century manor. I'm installing them from the launcher currently. I installed the regal living right before I got the expansions. I get a pop up error message, which you can see in my screenshot. Does anyone know how to fix this?

imgur(.)com/a/eP1D8

^link to the images