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We can’t open your site https://prnt.sc/ORgbB8zUApaW and footer.
Please watch this video – https://youtu.be/dedHEO443nE , it is about Footer static block that is edited using Elementor.
You can remove demo content from Appearance > Widgets > Footer.
If you want to use Elementor Pro plugin for the Footer, we would recommend you contact support of the Pro Elementor version.
One standard license is valid only for 1 project. Running multiple projects on a single license is a copyright violation.