Re: Can't download cc on Mac
@tcr1991 Try clearing your browser caches, or using a different browser. On my mac, Firefox has always worked well, but Safari and the store don't always get along. Also be sure to only download and install a few items at a time; the launcher can't handle a lot of data at once.
If this doesn't help, you may have a corrupted file somewhere in your TS3 game folder. The most likely culprit, though not the only potential one, is a .dbc file in DCCache. These files are bundled custom content (as opposed to the .ebc files in DCCache, which are bundled store content). The easiest way to narrow things down is to remove all of your .dbc files temporarily and then try installing one Exchange file. If it works, the launcher will have generated a new .dbc file, and you can install the rest of the items you want.
It's best practice to trash the corrupt .dbc file and rebuild its content; you may still have your original downloads in your game folder (specifically in Documents\EA\TS3\Downloads). But if everything that's already installed works in-game, you can just put it back with the rest of your cc bundles, and the launcher probably won't try to install anything else into it now that you have at least one newer .dbc for it to work with. Be sure to rename the newer file(s) so that they're all numbered consecutively: If your older ones are dcdb0, dcdb1, and dcdb2.dbc, your newest would also be dcdb0 (because you pulled the others), so rename it dcdb3.dbc.
If you can't install an Exchange file after removing all of your .dbc files, try pulling your entire TS3 game folder out of Documents. When you launch the game again, a clean folder will spawn with no content. Then the same principle applies—install one Exchange item into the new folder, make sure it works, install a few more, make sure they work, etc. Once you've added the new files you want, you can move your saves and other content into the new game folder from the old one. (Again, be sure to renumber the .dbc files.) Here's an explanation of the contents of your game folder, in case it's helpful:
https://sims3.crinrict.com/en/2011/01/faq-user-files.html
P.S. I don't know if you saw, but I moved your other threads to the mac section, since they had to do with mac OS rather than game bugs. (You can find them here and here.) But this one can stay, since issues downloading from the store and Exchange are pretty universal.