SOLVED: Well, actually I solved the error by myself. Although I deleted all the Sims-stuff in the Registry, I missed the "Sims" Registryfolder wich is located in HKEY_LOCAL_MACHINE/SOFTWARE/SIMS/The Sims 3. Now I deleted it and it works like a charmThx to katana for the help!Well, after I reinstalled Sims3 (Basegame) this error shows up wherever I try to start the game. Starting via Launcer didn't work, it says that an error accured. I reinstalled it but deleted all the Sims files (as said in the other thread) in the registry before. Then I tried to patch the game manually, wich produced the same error. If the game is unpatched, it runs fine.
I tried anything but I get always the same error =( (Maybe it is because my game is Arr'd but 6 months ago it worked just fine)
What can I do to fix this?