Facebook Plug-in's

Hi, I’m sure this is a stupid question, but I have to ask:

On my site, https://speakoutusa.com/, I have the Facebook social plug in, but as you can see, it has a blank area for the social plug in. I know that there is some code I need to put in, but can’t find the code, or exactly where to put it (I realize I’ve just set myself up phrasing it that way).

Any help is greatly appreciated…this community is great at providing assistance!

Dennis