docbream-2017 Hi
It may come from template override for article content. You can backup this file on your site:
templates/ja_focus/html/com_content/article/default.php
and replace with this attached file (unzip first)
In this file, I updated this code to render open graph info for FB sharing:
// Add Facebook tags
$doc = JFactory::getDocument();
$fblog = '<meta property="og:type" content="article" />'."\n";
$fblog .= '<link rel="image_src" content="'.JUri::base().$images->image_fulltext.'" />'."\n";
$fblog .= '<meta property="og:image" content="'.JUri::base().$images->image_fulltext.'" />'."\n";
if($this->item->tags->itemTags != null){
$this->item->rawtagLayout = new JLayoutFile('joomla.content.rawtags');
$fblog .= '<meta property="article:tag" content="'.$this->item->rawtagLayout->render($this->item->tags->itemTags).'" />'."\n";
}
$doc->addCustomTag($fblog);
Once done, you clear all caches and go to this Sharing Debugger tool: https://developers.facebook.com/tools/debug/ >> hit the Debug
button and Scrape again
Then check your sharing again.