Permission issue Squid2+Squidguard2

[lucas_blos]

Hi Guys,
I am facing a problem setting up squidguard.

I am trying to set it like this:

• Block all internet connection
• Create Group with department users
• Create Target with websites that the department needs
• Release only:  department_users to access "department_sites" and "basic_sites", leaving everything else blocked.

In base of the attached printscreens, what am I doing wrong?

Thanks for your time and help!