Sims 3 seasons shows as installed but isn't in game

Hi, a few days ago I downloaded The complete collection and full store content  and installed it successfully I opened the launcher and started the game.Everything worked fine except for seasons which showed as installed on my computer and appeared in the launcher under ''expansions and stuff'' but it wasn't activated so I imagined that to be the issue and ticked the box, however this didn't help and I'm currently uninstalling the whole lot of games to see if I can make it work by re-installing. If anyone has any ideas as to why this is happening I'd appreciate any feedback possible.

I think you accidentally skipped Seasons.
No need to do it all over again.
Just re-install Seasons