Most Welcome :)
From your screenshot it seems that your are using some bottom margin in your prefooter area. So to fix this first notice the short code of html block which you are using for your prefooter area from Theme Settings >> FOOTER >> HTML before footer.
Screenshot for clarification: https://jmp.sh/CFaA7dY
Once you notice that specific html block shortcode go to Dashboard >> HTML Blocks and edit that specific one. Then edit the row which contains those info boxes and in the row bottom margin put some margin in negative and update the html block and then check your footer.
Screenshot: https://jmp.sh/aNVV4H9
Best Regards.