Incorrect Admin BAr Links

On the home page of (wordpress multisite installation with buudypress) drop down menu in the admin bar (top left corner) all links are correct. E.G clicking on “Music” leads to site . Here now is where the error occurs. When I foolow the link to the music site … The link for music now is and for sport the same error (The links should always be or etc

Thanks in advance

Mark M.