The CSS that is making that red is based the page url matching the link in the footer. Because each of those links goes to /evans-eventos-e-solutoes each link is highlighted in red but only when viewing from that page.
If you make the 5 footer links go to other pages, they will only be red when the current URL matches the link URL. If you want to disable that functionality, you can update the CSS to not change it to red, or update the footer module to not apply those classes on matching pages.