I like your plugin and I find it a great tool for my site.
I have an issue that you can check visiting the link below.
If You click the Facebook share button at the bottom of the post excerpt
you will see that is shown another picture, title and description instead of the page to be shared. The page that appears is the one I duplicated to create the new post. What is weird is that if you go on top and click the English flag and make the same attempt it appears correct.
2-If you try to share the page using the first facebook button you see that page description isn't correct but just a line which is the tagline I wrote in the General page of WP.
I tried to deactivate the sharing tool plugin and copy the page URL straight in the facebook box but the result it's the same so I thought is a SEO plugin problem.
Please, have a try and then tell me how to send you need admin data to check if I made a wrong plugin setting.
Thanks a lot,