Proxy Log and Report: not complete

Hi all.

I would like to record all the sites visited through IPFire, so I have enabled the Transparent Proxy over the green network. I have also installed the sarge addon (but it is not necessary, I can remove it).
When I check the proxy log there are too few entries, I know I have visited some sites that are not listed.
When I check the Proxy’s Report and click on “create report” nothing happens, even if I refresh the lists.

Is there anything that I am missing?

Thank you for your help.