When you have limited content on a page, the footer may be forced up in the page. You can add CSS to force the footer to the bottom of the page. This is also known as a sticky footer.
Add the following CSS code.
See the article on where to add CSS code.
/* Force footer to the bottom on pages with limited content */
padding-bottom: 60px; /* Should be equal to the height of your footer */
For more comprehensive information about making footers sticky in Beaver Builder Theme and Beaver Themer, see Neil Gowran's blog post at WP Beaches.