Questions

To edit the footer area: https://wpgeodirectory.com/docs/faqs/how-do-i-change-the-footer-text-in-supreme/

What is it exactly you have trouble with matching the Supreme demo at https://wpgeo.directory/supreme-directory/ ?
That is just installed out of the box, with some addons activated and widgets added.

See also https://wpgeodirectory.com/docs/supreme-directory-overview/

Thanks

That means you made an error adding the code.
Try using the Code Snippets addon, it will not save unless the code is correct:
https://wpgeodirectory.com/docs/useful-plugins/#snippets

Thanks