You are not logged in. Your IP address will be publicly visible if you make any edits. If you log in or create an account, your edits will be attributed to a username, among other benefits.
The edit appears to have already been undone. You may have attempted to undo a page move, protection action or import action; these cannot be undone this way. Any autoconfirmed user can move the page back to its previous location, and any administrator can modify or remove protection.