[Dave of the Feet]

I am trying to install Sourcebans++ 1.7 on my server and I get the following error while trying to complete "Step 5: Initial Setup"

 Fatal error: Uncaught PDOException: SQLSTATE[23000]: Integrity constraint violation: 1062 Duplicate entry 'dave' for key 'user' in /usr/www/thefootclan/public/sourcebans/includes/Database.php:117 Stack trace: #0 /usr/www/thefootclan/public/sourcebans/includes/Database.php(117): PDOStatement->execute() #1 /usr/www/thefootclan/public/sourcebans/install/template/page.5.php(72): Database->execute() #2 /usr/www/thefootclan/public/sourcebans/install/includes/routing.php(21): require_once('...') #3 /usr/www/thefootclan/public/sourcebans/install/index.php(14): build() #4 {main} thrown in /usr/www/thefootclan/public/sourcebans/includes/Database.php on line 117

Can anyone help me fix this?