You have markup errors on your site causing this layout issue.
First, you have a link or anchor tag (
<a>) added on the Custom Head Codes option. That option is only intended for custom
stylesheet <link> tags. You could just add your google page link on
Frontier Options -> Display -> Footer Text or on a
Second, check the content of your 3rd widget on the right sidebar. The
<img> tag is not properly closed. This might be the main cause for the footer issue.