I deleted some of my parent categories that had child categories. Now those child categories seem to be hidden somewhere, because I can't recreate them.
For instance, I want to create a category called "biking" but it says there already is a category named biking. It's not on my list, and I cannot access it to edit or delete it.
Where can I access these categories, or BETTER YET, what file can I reinstall to WIPE OUT my categories so I can start anew?