Not Working At All

I thought that this plugin would solve my problem but it doesn’t work. I’m using the Houzez theme and I’ve tried the FW page template with both Elementor and Divi Builder. When applied, it does nothing – it simply doesn’t make the page full width. I’m wracking my brain for solutions and nothing is working. Please help!!
http://elizan.realtyna.info/test-fw/

The page I need help with: [log in to see the link]