Post Category Pages Do Not Generate Properly

I have posts in multiple categories on my website and am trying to have a link on the menu to pull up a page that is just one specific category of posts. When I go to firstinalabama.org/category/general the site says that I am looking for something that isn’t there. However, there is a post in that category. When I try to go to one of the other categories the site auto-redirects to one of the pages that I created. If you can help me at all with this it would be very appreciated.