I put JFB Social Share buttons (LinkedIN, G+, FB, Twitter) at the bottom of the home page (using JFBC Social Share [mod_jfbcsocialshare] module) of my web site ( I use Joomla 3.9.3 and JFBConnect 8.0.6):
There's a div at the bottom of the page that's interfering with being able to click on the buttons. If I set the "div#jchat_base" element to display:hidden in my dev tools, I'm able to click on the buttons. I hope this helps narrow it down, but let us know if you need further help.
Anyway, I can't set "div#jchat_base" element to display:hidden. In fact If I do it the "chat bar" at the bottom of the page would disappear ( "div#jchat_base" element defines the style of the chat bar)!!!
So we have to find a way for not to interfere with the visualization of the chat bar.
I'm sorry for the confusion. I wasn't saying to remove the chat. You'll have to bring the z-index of the JFBCSocialShare module higher than the chat bar (which is 10001).
That can go in your template's CSS anywhere. Most template's have a custom.css file or something similar to add your own CSS to be included on the page.
.jfbcsocialshare.scsocialbuttons {
  z-index: 10002;
}
I don't know what those extra characters are, but those are causing the problem. If I remove them and add the !important flag to the z-index line, it works properly.
I inserted that code in /css/joomla.css file of the template. In attach you find the code I put in that file. I don't know those characters
Do you want to connect to my Joomla admin page?