Mundayk,
This looks like the same problem I have just had.
Try doing a factory reset, it may well put it right.
If the factory reset does not fix the problem, then (compliments to Ricalynn), make a link to bypass the launcher:
Computer > Program Files (x86) > Electronic Arts (Origin if you only download) > The Sims 3 Island Paradise > Game > Bin and then I just make a shortcut to the TS3EP10.exe file.
Use the link to start your game. Do not connect to the internet when prompted. Place your family and start playing. Pause game and use "Options" to connect if you wish to do so.
You will only need to use the bypass when you want to start a new family. Though, it can be used ata ny time if you wish.