Can’t play sims 3

There is no way that I have had this game for so long and then the moment that the Sims 4 comes out I can no longer play the game that I spent so much money on this is a rip off. We need to come with a solution of fixing the game or EA or Sims need to refund us all our money back from these games that we have purchased. It’s no way that I reinstalled uninstalled this game. Finally got to play it,  did all of this stuff for hours went to save it came back and now it’s saying that it’s an error with the worlds . I have tried everything something has to give and we need to come up with a solution.