Completely remove ultimate branding

How do I go about completely removing ultimate branding plugin.

I installed it on a single site installation. As I was going through and activating the different modules, when I activated the Admin Footer module, the site reloaded with this error

Fatal error: Cannot redeclare class Ahc_AdminHelpContent in /home/teatrade/public_html/vbpd.info/wp-content/plugins/ultimate-branding/ultimate-branding-files/modules/admin-help-content.php on line 52

I deleted the plugin from the plugin directory so I could get access back to the site, but now I can't re-install it (presumably because the database tables are still there and it loads them right away).

What tables does UB add that I need to remove to be able to reinstall it? Does it even work on a single site install?