Hello! I can’t install neither Demo content, nor demo pages. These options are deactivated in my admin bar. I have also tested it with deactivated 3-d party plugins, but it did not help me. Here is screen shot: https://youtu.be/rGo4cctiEIE
Most likely you have imported and deleted the page. I attach the template, and upload to the Elementor library and then insert into the newly created page.
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