VirtualBox Shared Folders

I’m having a very difficult time trying to get shared folders in VirtualBox to be accessible as local storage on owncloud. I’m using the appliance vdi latest version.

I’m able to access the shared folder through the OS, but anytime I try to add the local folder in my admin panel in owncloud, I get the red square.

For example:
/media has a green circle, but I cannot see anything in that folder
If I add /media/sf_test123, I get the red square

Enabled local storage - ‘files_external_allow_create_new_local’ => ‘true’,
Changed the permissions on the folders

What am I missing here? Can someone be so kind to provide a step by step?

I think the issue is with VirtualBox.