I know this has been talked about in other threads, and two solutions were suggested.
1. Find the duplicate OG tag in the header.php file. I tried this and wasn't able to find anything.
2. Untick the Add OpenGraph meta data box in Yoasts SEO Social settings. No luck there either.
Any other suggestions? This just started happening and nothing had changed on my site.
Oh, and my site is http://www.bobwp.com