Kodi Add-On Repository

I am totally new to Kodi and am trying to get a grasp on loading add-ons. I hope I give you the information needed. My problem: I wanted to install an add-on that is in the Kodi Add-on Repository. I got the screen where it asks to update. I clicked that and it said there were no updates available. I am on version 2.4.9. I can’t get out of that screen to actually view any add-ons. I am using an Amazon Fire-stick (version Fire OS 5.2.4.0). How do I get to the actual Kodi add-ons. I also tried this using Kodi on my computer and am running into the same issue. Each time I click on the Kodi app, I am taken to thje Add-on information screen and am only able to highlight Update and Auto Update. Where do I go from here. Thanks for any help you can give a newbie.