Issue with video shared on facebook

Hello,

1. I embedded a youtube video to Easysocial video gallery. When I share the video on facebook for example, the link doesn't work correctly on computers. I can see the post, but when I click on it, I get a blank post image and I have to click again on the link (that is half hidden) to get to my site.

It seems to work correctly on mobile!

Could you have a look at it?

2. Also, Is there a way to force/priorities Easysocial content to be chosen first when sharing a post from the activity stream? Right now, if I share the video from the activity stream, Facebook pull an image from a side module which as nothing to do with the video!! It is working if sharing from the video page itself.

3. I get the warning message when using facebook debugger: fb:app_id hasn't been included in the meta tags. Specify the app ID so that stories shared to Facebook will be properly attributed to the app.

I did enter app and admin ID in setting...

Thanks.