Still... Must be doing something wrong because that link just takes me to the home page of fantasy baseball with no option to find a league
https://yho.com/mlb?l=98861&k=7db4d85497f60845&ikey=95659b746c89a97a Not sure why, but try this URL. Should work.
If you're still looking for teams, it looks like I need an invite. I get this message when trying to join.