[akz645]

It worked

Here are some 'improvements'/ 'further help' for those who need it:
The bbcode_video template is located here:
Admin CP -> Styles & Templates -> Style Manger -> Edit templates -> BB Code Layout Templates (double click) -> bbcode_video (edit)

Originally Posted by naveeid

1) you need to create an application for your website on facebook , and configure all the settings. its easy , just search how to do it.

Link: https://www.vbulletin.com/docs/html/facebook_enable
Note: Skip the 'quick settings' once you select that you're using for a website (the WWW. circle)
Then you'll see:

Originally Posted by naveeid

Select FROM THIS LINE
<vb:elseif condition="$provider == 'facebook'" />
UNTIL THIS LINE
</vb:if>

You get an error if you remove the first and last line. Hence I didn't remove them.

In other words, I replaced this:

<vb:elseif condition="$provider == 'facebook'" />
<object class="restrain" type="application/x-shockwave-flash" width="576" height="432" data="//www.facebook.com/v/{vb:raw code}">
	<param name="movie" value="//www.facebook.com/v/{vb:raw code}" />
	<param name="wmode" value="{vb:raw wmode}" />
	<!--[if IE 6]>
	<embed width="576" height="432" type="application/x-shockwave-flash" src="//www.facebook.com/v/{vb:raw code}" />
	<![endif]--></object>
</vb:if>

With:

<vb:elseif condition="$provider == 'facebook'" />
<div class="fb-video" data-href="https://www.facebook.com/video.php?v={vb:raw code}" 
  data-width="500" data-allowfullscreen="true"></div>
<br><br><br><br>
<div class="fb-like" data-href="https://www.facebook.com/nidokidos1" data-layout="standard" data-action="like" data-show-faces="true" data-share="false"></div></vb:if>

Oh & I didn't like the whole 'like' button below the facebook video + it was much lower down than the video.
Hence I removed things from the replacement code (when adding a new BB code):

<div class="fb-video" data-href="https://www.facebook.com/video.php?v={param}" data-width="500" data-allowfullscreen="true"></div>

Finally, I'd recommend switching your bbcode_video template (except for the FB edit you did above) to this:
https://vborg.vbsupport.ru/showthread.php?t=283594