Ok so there is still an issue with firesticks using kodi 18 and the kod1 app installer.

We have created a bit.ly link just type this into the downloader app

http://bit.ly/appskod1

That will give you access to the files in the kod1 app installer, android users can type the same url into a browser if you wish

As you can see on my firestick i typed in the url
http://bit.ly/appskod1

I named it KOD1 APPS, you can add to favourites by pressing the button with the 3 lines on it

You should see something like this

Select a category and install an app of your choice.