Installed nothing happenef
you need to disable exiting comment system than it will work. Tks
No, thats not true. It works with the existing comments system, you dont need do disable something.
To install open wp dashboard, go to plugins > install and search for social comments. klick install and after that activate the plugin. you find the settings for the plugin in the dashboard under comments- social comments.
On one site I have already done what @briesmi said and I can’t see the Social Comment submenu but on other site it works like charm. It seams it’s a plugin conflict. Do you have any idea what can I do?
try disabling on plugin at a time and find which one is conflicting.