Launcher won't install sims3pack files anymore after latest update

*sigh* I made a world, spent time on it, and I can't even play it..? I've tried so many things, this is seriously so dumb =| I've tried downloading so many things, too. Some go through, some don't.. I apparently have a world able to upload on the launch screen, but it won't download to my actual game.. so, fine, I try uploading it to try to download it from the site- it won't upload. Okay. So confused. I just don't get what's going on..