Issue with admin tab for moderator in group


I am working on a website in which i used buddypress, bpress and now i am getting an issue regarding admin tab of individual group.
if i logged as admin then i can edit group details for individual group but when i logged as moderator i am able to see the admin tab in groups but when i clicked on admin table , it is redirecting to same group not show all admin sub tab items like, details, members, delete.

Means group moderator is not able to edit, delete groups.So please help me, how i can do this.

Below the group : Marseille


PS : WP 3.5 & BP 1.6.2