Catalog > Manage Categories entrypoint not visible (Also tabs are missing)

Question

I am making a custom module which has a functionality to sell products on magento website. I have used customer groups to define sellers and made a custom module, but suddenly categories entry point went missing. When i click on Catalog > Manage Catgories it shows products listing there, and when i click on Add Subcategory it does nothing but just refreshes itself, and product listing remains the same.

Also it is not showing the default tabs when we click on Add Subcategory

• General Information
• Display Settings
• Custom Design

But it only shows Category products all the above 3 are missing.

I didn't change anything in my custom module related to categories. Please guide me what am i doing wrong here. Below is my screenshot.

Answer 1

First go to admin->system/manage store and check whether the Root category is set to default category(root category:default category).

Then check whether the category you created are sub-categories of the default category.

I think This link will help you-> link Refer the screenshots in it.