Kodi update

I have recently tried to update my r box pro ( jail broken ) with kodi 17.3. So I followed a tutorial on the internet and I have now uninstalled kodi completely I have been able to download Kodi 17.3 but when I go into app installer and click on local disk it just runs for a bit and then says app is not installed. My rbox is running android 6.0 and it did have Kodi 17.1 on it now there is no Kodi at all. I’m am hopeless with technology so can someone please explain or help with this problem. Thanks