duplicate content under the footer

As soon as I try to import demo content (with Elementor importer) into the page’s body (under the header image and above the footer), it is duplicated UNDER the footer as you see in this sample page (it happens in all new pages I create).

I’m also getting another error while trying to edit the Home page with Elementor … ‘Sorry, the content area on your page was not found. You must call the <<the_content>> function in the current template, so Elementor can work on this page ‘

I’m also finding a third error: “Notice: ob_end_flush(): failed to send buffer of zlib output compression (1) in /var/www/vhosts/ohtights.com/httpdocs/wp-includes/functions.php on line 4552”

I have read the documentation (https://docs.themeisle.com/) and we have latest versións of WP, theme and Elementor… I have tried to disable all plugins (except elementor) and the problem persists. When I deactivate Elementor the problem disappears but I lose the design made ??

?Can you help me, please?

Thank you so much

[ Please do not bump. ]

• This topic was modified 5 years, 3 months ago by marisolpb.
• This topic was modified 5 years, 3 months ago by marisolpb.
• This topic was modified 5 years, 3 months ago by marisolpb.
• This topic was modified 5 years, 3 months ago by marisolpb.
• This topic was modified 5 years, 3 months ago by marisolpb.
• This topic was modified 5 years, 3 months ago by Jan Dembowski.

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