[Plugin: BackWPup] Backup page blank

Hi,

I have this plugin installed on a clean install of wordpress running on Nginx 0.8.53 with PHP 5.3.4 and Mysql 5.1.x

When I try to go to this page, it only loads a blank page. The backups have been created however, and are accessible through ftp.

https://vps1.mysite.ca/wp-admin/admin.php?page=BackWPup&subpage=backups

Please let me know what should I do.

Thanks!