admin wont let me in please help

Hello I just downloaded dolphin and in my admin page I am unable to sign in. In my installation I set my user and psswrd and still nothing happens. I noticed that when I first went to admin page it auto had "admin" and a few dots in the psswrd section so I click the "Log In" button anyway and still not able to get in. How can this be fixed thanks

Thats ok I figured it out. My username had too many characters beyond 10!