Yes you will need to create an account on the other instance. Many (I would say most?) instances allow open account creation, you may have just been unlucky with the one you looked at.
Galactic helper
Yes you will need to create an account on the other instance. Many (I would say most?) instances allow open account creation, you may have just been unlucky with the one you looked at.
Make sure to select a language (e.g. English), I've seen it do this when no language is selected.