Can't access admin login page. Surely it can be by passed?

Hi all,
I can’t get into my log in page for http://www.wanasbag.com/wbwp/wp-admin

I read in a earlier post on the forum by the author to just delete the plugin via FTP, which i did but still nothing working.

I am suprised I’m not seeing a lot of other people with this problem, all I did was close down my browser and reload all my webpages to log in again.

What else can I try?

Thanks

http://wordpress.org/plugins/ultimate-coming-soon-page/