Howdy,
Facebook debugger can occasionally complain when things aren’t broken. I’ve seen this exact behaviour before and the problem just went away by itself. In your case, there’s nothing wrong with your website that will prevent Facebook (and other social platforms) from displaying the correct social data. All your social meta tags are working as expected.
That said, you do have an issue that may or may not be related to the debugger issue. If you view the source code of the page you sent me you will see there are two sets of Open Graph tags being output. One set is by the Open Graphite plugin, and the other is by Yoast. If you would rather have Open Graphite handle the social meta tags, you can disable the Yoast social functionality as explained here.
The Yoast output is also using an invalid twitter:card property (as highlighted here). According to the Twitter documentation (X) the only allowable value here is ‘summary_large_image’ not ‘summary’ as Yoast suggests.
That aside, there’s nothing to worry about.