Jomsocial expert for tooltip error in user profile

i have this problem on my Jomsocial website: "send message" and " add as friend" ,and also "report user" "block user" links in users profile won't work when i visit a non-friend page. i click on the link and i get only a blank tooltip with a javascript void message like the image below.. i tried to get it working enable/disable modules and components in backend, or changing template but the problem persist. i urgently need to get it work. answer me only if you are a jomsocial expert. thank you.