@brutus5000 Thank you for the answer!
I tried to reset password via steam, unfortunately I got the following error messages:
{"requestId":"e7d332ae-cdbb-4e20-b38a-848c3cce7808","errors":[{"status":"422","title":"Unable to resolve steam id","detail":"The Steam ID '76561198049802665' does not match any account.","code":"193","meta":{"args":["76561198049802665"]}}]}
I think I couldn't connect my steam account then.
Now I tried to link my steam account again. After I press the "yellow" colored "Link your FAF account to Steam", the page suddenly refres it self and I get the red error message, without any redirection to steam sign in.
What can prevent me from linking? I followed the guidelines, also tried some "solution" from the forum. I'm absolutely lost.