I'm not sure why, you'll need to check with whoever did your style.
It seems though the CSS class for the FB recommend button
.facebookLike .shareControl is rendering with a width of 0px.
View attachment 94144
According to the default
share_page template, that is supposed to be at a width of 400px:
Code:
<div class="facebookLike shareControl">
<xen:container var="$facebookSdk">1</xen:container>
<fb:like href="{$url}" show_faces="true" width="400" action="{$xenOptions.facebookLikeAction}" font="trebuchet ms" colorscheme="@fbColorScheme"></fb:like>
</div>
Maybe try reverting that template?