Age of Conan Error 500

Hello everyone!

I downloaded and installed Age of Conan from Steam today, played the game for a while and wanted to have a look at it again after such a long time.

Since my old e-mail address no longer exists (changed provider) I wanted to create a new account, but unfortunately it says Error 500 the page is not available.

Do you have any tips or can you help me please?

Kind regards