In the Theme Options->Footer->Display Social Icons on Footer of the Page
You need to disable it.
Then in your Theme Options->Footer-Copyright Text
Add the following codes.
<p>This is some random text</p>
In the Footer Copyright area, it is actually separated into two divs, one on the left for the copyright text and one on the right for the social icons. If you float your div to the right, it actually gets “stuck” in the middle, and you can use margin right to adjust a little.
Please see screenshot for results. http://prntscr.com/7ipnvc