Mayo Login Screen Plugin ugly overwrite in dashboard

Hello all,

I took a few stabs at finding admin-backend.php but it’s time to wrap up for the night. The Mayo Login Screen plugin got installed and uninstalled but it left this ugly bit at the top of my dashboard. Could someone point me to where admin/admin-backend.php is? I looked for it using GoDaddy FTP and it wasn’t there at the top levels. If I absolutely have to can I leave it as is without it hurting anything? Thanks much. P.S. I think I just saw there was a file like this in the plugin itself, which caused the message by being referred to even when the plugin was uninstalled. Just want to figure how to get rid of this error message so my dashboard doesn’t look like a junior coding experiment (thanks May0).

Warning: include(__DIR__/admin/admin-backend.php) [function.include]: failed to open stream: No such file or directory in /home/content/07/6263807/html/badoop/wp-content/plugins/mayo-login-screen/mayo-login-screen.php on line 37

Warning: include() [function.include]: Failed opening ‘__DIR__/admin/admin-backend.php’ for inclusion (include_path=’.:/usr/local/php5/lib/php’) in /home/content/07/6263807/html/badoop/wp-content/plugins/mayo-login-screen/mayo-login-screen.php on line 37