Solved
The public if you have entered is already in use
Can't register an account with a nickname (EA ID). I ask you to explain in detail to me in what cases (for what reasons) a user account can be released for re-registration? I tried to contact the user (owner) of this nickname (EA ID) to ask to release the nickname (EA ID), but unfortunately the user does not contact me. I ask you to treat this issue with understanding, for me it is very important.
If your chosen User ID is not allowed for whatever reason, profanity/already in use etc., you will need to choose another username, thanks.
