Hello, I am new to magento. Navigation is not showing on homepage and other pages, but it is visible on /checkout/cart page only. All the categories are under default category. How to display menus on homepage and other pages.
You need to check page.xml file. Must be that you have not included or removed references for the navigation. Give your website link may be you can be helped in a better way.
Let me share your current web store URL. I will review it and will assist you it in a proper manner.