Facebook Like Box leaving large white space

I have the widget settings as follows:

width and height: 350px
Only the “Show Faces” checkbox is checked.

For the last few weeks, the Facebook like box only displays one or two faces, whereas before it would fill up the 350px with faces of those who like the page. It still takes up the large 350px area, but it’s left white.

This is happening on my site: https://www.7thpage.com. I’m also seeing it on my site, https://www.5thwave.net. Both are hosted on the same server, though they aren’t connected via multisite.

Any idea what’s causing this?

Thanks

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