Make sure you have installed Directory Starter first, then install and activate Supreme.
If that isn’t the issue please share WP Admin so we can take a look. You can use a private reply so only our team can view the details. https://wpgeodirectory.com/docs-v2/themes/supreme/
To open a new support ticket, first select the relevant forum and then click the "New Post" button. Example: You need support for the core plugin? Click on Core Plugin support and click on the "New Post" Button.