Hey! So I just bought a Sims 3 game from Origin and it comes with the Late Night expansion pack and High-End Loft stuff pack (I haven’t installed them yet) I am having trouble opening the main game. It has downloaded and installed smoothly but I keep getting the same message. I am currently using an early 2015 Macbook with macOS High Sierra.
@alazee1113 That's a message we haven't seen in 2019, although it was a huge problem last year. From the screenshot, it looks like you were online when you launched the game? If so, this may well be the same issue as before. There are a couple of fixes, but the most straightforward one for you may be to just go ahead and install both your packs. Last year, adding Late Night was enough to get around this message.
You'll need to apply one small fix for LN, otherwise you'll get an unknown error message. Just create an alias (icon) for LN in Applications\The Sims 3, alongside the alias for the base game. This is simple:
If this doesn't work, let me know, and I'll do a test install tonight to see if I can figure out what's going on.
@kaylalikescats You can download the packs and go through the standard troubleshooting steps for the unknown error; this will bypass the server issue as long as you own at least one pack that isn't World Adventures or High-End Loft Stuff. Let me know if you need help with the unknown error fixes, and please list the packs you plan to install.
Or, if you'd prefer to fix the base game alone, here's how: