facebook error when autotune

The object looks to be incompletely configured. It is missing the 'Object Type' field. This value needs to match the type of the object in Facebook.
* Please add "article" as the Object Type field.
* Article is a built-in type in Facebook, so please check the 'Built-in Facebook Object' checkbox.
* For the category, you should be able to select the top-level category that your articles belong to if you want the values to apply for all of your articles.

Please note, when making changes to the Open Graph tags, you will need to re-scrape Facebook after each change. When I went to developers.facebook.com/tools/debug/og/o...eme-numero-de-micmag in the Facebook Open Graph Debugger, that URL had not been scraped yet. So I hit the 'Fetch New Scrape Information' button. Without manually scraping after each change, Facebook will just make a best guess at the image/description. Then after the object is set up properly and your test URL is working, you can wait for Facebook to scrape the rest of your pages correctly (unless you have a small amount and want to do those manually too)

Inspecting the code on your page, the image that is being shared is actually the first image that is in the article content. If you're looking to display the image that has the two phones, inspecting the page source looks like it was either the intro or full image on the article. You will need to select the appropriate 'Article Intro Image' or 'Article Full Image' in the object you've created.

what can we do to fix it (it is a very very log way to configure it...!) ?

As long as you've selected the top level category, you should only have to configure one object. If you select 'Article Full Image' and there isn't one present for an article, we'll attempt to figure out the next best image (by either grabbing one from the article content or category).

No problem. Very glad that you got the issue resolved. Let us know if you run into any other problems.

-Melissa