For grins and giggles, have you tried turning off Origin-in game? and "Offline" mode -- In the Origin Client, go to the Origin Menu and select Go Offline.
And yes, you updated to patch 1.69? If not, would you try launching the game via it's exe file? C:\Program Files (x86)\TheSims3\Game\Bin\TS3W.exe - and click on the file TS3W.exe to launch the game.