Serial Code To Mount&blade What Should I Do If My Sims 3 World Adventures Serial Code Is Invalid When Registering?

What should I do if my sims 3 world adventures serial code is invalid when registering? - serial code to mount&blade

I have Sims 3 World of Adventure, and after the installation, I found that Riverview has become corrupted, and all my custom content in the format. Package disappeared. When I tried on the official website (sign up with my account that I have when I saw the first game, tested) it says my serial number is invalid. Is this a known problem or am I the only one with this problem?