Board Thread:Support Requests - Getting Technical/@comment-35016726-20181223225327/@comment-3499588-20181224003043

Just go into the editor and then edit the category name by highlighting the category and clicking the edit button. As long as there are no pages in a category it will not exist as long as no one has actually created a page for the page itself. And if that's the case, then you will need administrative powers in order to delete the category page.