Are you running a different CMS than Wordpress on your hosting space? cPanel or Softaculous will not overite the current databse that is there. If so make sure that the database is available to use. If you had just upgraded your hosting package to a Gold Home, maybe you just need to wait a while for the hosting spce to be prepared for your package. Try and give support a call to see if your hosting has been upgraded to to the package that allows for a database.