By installing Facebook Open Graph plugin the Yoast SEO plugin gave an error.
The Facebook Open Graph, Google and Twitter Card Tags plugin might cause issues when used in conjunction with Yoast SEO.
Both Yoast SEO and Facebook Open Graph, Google and Twitter Card Tags create OpenGraph output, which might make Facebook, Twitter, LinkedIn and other social networks use the wrong texts and images when your pages are being shared.
Facebook Open Graph plugin inserts Facebook Open Graph Tags into your WordPress Blog/Website for more effective and efficient Facebook sharing results.
It also allows you to add the Twitter Card tags for more effective and efficient Twitter sharing results.
It also allows you to add the Meta Description tag and Schema.org Name, Description and Image tags for more effective and efficient Google sharing results.
What is Facebook Open Graph?
The Open Graph protocol enables any web page to become a rich object in a social graph. For instance, this is used on Facebook to allow any web page to have the same functionality as any other object on Facebook.
While many different technologies and schemas exist and could be combined together, there isn’t a single technology which provides enough information to richly represent any web page within the social graph. The Open Graph protocol builds on these existing technologies and gives developers one thing to implement. Developer simplicity is a key goal of the Open Graph protocol which has informed many of the technical design decisions.
One solution to this problem can be to deactivate social settings for Facebook.
You can find these settings under SEO.Social
This will hep canceling the warning from the Yost panel and still use the Facebook Open Graph Plugin.