Can't login to admin

I changed it so my sites URL would be mysite.com rather than http://www.mysite.com in the WP Admin settings and now when I try to log-in, I just get a blank screen. I see no way to log back in now.

Any idea what to do?

My sites url is freshprinceofbelair.com – you’ll also notice that the http://www.freshprinceofbelair.com version doesn’t work now either.