About the Facebook issue as you mention on above, can you please provide me the url of the page so i can check it directly on my side.
About meta information, you can edit this file jkreativ-themes/template/blogpost/article-masonry-bottom-meta.php the you can search the word that you want to change.
About social account on sidebar, yes you’re right. Actually there’s no issue but in this case you have many social items that’s make on certain social item goes into bottom area.
We will suggest you to use child theme on your site, so when you’re going to update the theme, your change wont lose.
Let us know if you need further help.