It seems like something is not right from this image link, you can refer on my attached screenshot below.
Then i realised the reason why we retrieve this image link (
http://www.adaderana.lk/news_images/1182340145akila-viraj-kariyawasam_L.jpg) is because that og:image tag they put this 404 link.
You can view following their page source here :
[gist type="php"]
view-source:
http://www.tamil.adaderana.lk/news.php?nid=97061
[/gist]
This is something we unable to predict whether their provided that link is still accessible or not.
Perhaps you can provide us with your database access so I can help you manually update that link from stream table.