Blank og image?

How can I fix this:

<meta property=”og:image” content=”https://s0.wp.com/i/blank.jpg&#8221; />

…curious why an image with an external WordPress url shows up? I never put this in my page anywhere and expect it to use either the featured image of the post or let me select from the many images on my home page. I’m wondering if jetpack is breaking my site.