Default Front Page Issue

My default Drupal is installed in www.jobcull.com/cull, under the site information tab, the default is at www.jobcull.com/cull and gives me a box. I can’t leave it blank. Is there a way to route the default page back to www.jobcull.com?

Drupal version: 


Source: https://www.drupal.org/taxonomy/term/22/feed