Help!!! I can't login to my WP Dashboard again!

Hi,
I can't seems to login to my wp-admin backend anymore. I used renamed plugin to change the admin login and now when I place the new rename login link it shows this: http://barniwebs.com/?by_user=80.248.11.31&ref_url=/wp-admin/#/home
How can you help me solve this?

Url: http://barniwebs.com

Regards