October 2020
@Padmefan2017 What error?
Did you try all the suggestions in that thread? There are a lot of them.
October 2020
October 2020
October 2020
@Pancakes0328 Try the steps here:
@Padmefan2017 Delete the cache files when the launcher is closed. If you still can't install custom content, even into a new Sims 3 folder, please send me a private message with a link to something you're trying to install, so I can test it myself.