I see that http://bharbet.uni.me/ has been blocked because of abuse... and it contains a hosted virus (according to Avast!)... are you sure your website is set up correctly?
Is this with MySQL or PgSQL? For MySQL, click on the MySQL Databases link, scroll to the bottom of the page. There should be a drop-down to select the user and database. Select the appropriate user and database and click add. That should solve the issue. I am not familiar with PgSQL, but I would assume the process is similar.