Vicky,
Thanks for enabling the plugin. There's 2 things I see that could be the problem. The first is that it seems like your Javascript compressor is causing a conflict. It looks like it's a part of your T3 template, so look there. Try disabling it, and that should help.
The second is that the LinkedIn Javascript Library is being loaded twice, once by JFBConnect, the other from JLinked. It's likely because you are using the social buttons from JFBConnect (which will add the LinkedIn library), whereas JLinked will add it always. Not sure if this is a bug in our extensions, because I'm pretty sure we test for that. After you've disabled the JS compression above, if you're still having issues, can you then try:
1) Re-ordering the JLinked System plugin to either before or after the JFBConnect System plugin and see if one helps over the other.
2) Disabling the Social buttons in JFBConnect and enabling them in JLinked. They're pretty much the same feature between the two, so it shouldn't matter which you use.
Hope that helps,
Alex