Using categories in menus

I am using the Oblique theme. I want to use categories in my menu. I know how to set that up and have done so successfully. However, when you co to the category it take me to a “page” that reads “Category: Family Travel”. I want to get rid of the “Category:” portion and only have the topic appear. I know there must be a way to get rid of it but I cant seem to figure it out. Any ideas?
If you want to see what I am talking about go to https://www.genxtraveler.com/category/family-travel/