sirs, I'm using Membership plugin for creating a premium

Hi sirs,
I'm using Membership plugin for creating a premium contents web site.
I'm using categories to classify contents: one categorization has an editorial function and the others categorization is used to divide free contents from premium contents.
The site is http://www.entilocali-online.it
Everything is working but my problem is that when I try to list an editorial category (ex: "Primo piano" http://www.entilocali-online.it/category/primo-piano/ ) I dont' see any contents. Not even the free, not even the title or the first lines of the premium contents that I can see if I make a list for a month (ex: http://www.entilocali-online.it/2014/07/ ).
Category "Rassegne", "Riviste" e "Primo Piano" are editorial categories while "Base" and "Full" are referred to the protected access.

Yesterday I had a reply from a member of staff that asked to enable Support Access (I have done) but since then no reply or informations.

How can I solve this? Is there some configurations that I must do?
Thanks a lot for your help.
Federico