i know this is the wrong forum for this but i can’t find another …
I don’t get a registration mail from the forum so i am unable to create a new account! (tried some times with different web.de accounts …)
I create a new web.de account to create a new (fake) facebook account to write this topic …
I have never seen this issue for any user or similar case was never reported. I think you shoould be able to register as a user with new username password or else using Facebook, Google or Twitter account.
Can you please attach some screenshot of the error that you are getting ??