Started WordPress Backup and Now Site Not Working

Hi,

I am a wordpress amateur and i started the plug-in Online Backup for WordPress from Backup technology today. Once I backed up the site it shut down my site entirely and is now asking my to install wordpress. When i visit the site directly it takes me to wordpress installation site. When i go to the site/wp-admin same thing. However, it never follows through and actually installs wordpress… it stops and heads to a blank screen. Help!!