@pcgs51 Most people were just using the Header Right widget area for Menus, but if you want to add it back for other content, you can remove or comment out this line in your functions file –
//* Unregister the header right widget area
unregister_sidebar( 'header-right' );
Here’s the other Doc page – https://appfinite.com/theme-setup/epik-theme-setup/
Make sure and backup/save your previous Theme and any customizations you made in case you want to manually carry any of those over.