Help with Kodi 17 – Blackscreen

Hello:

I am VERY new to Kodi and I need help, please. I was running Kodi 16.1 on My Firestick and decided to upgrade to Kodi 17. After Installing Kodi 17 (Krypton), I now find that when I attempt to launch Kodi, I got a blackscreen. After some research, I learned that I had to Force Quit Kodi and empty the cache via settings. I did so. Now when I attempt to launch Kodi 17, I get an initial Kodi opening screen, but then the screen goes immediately back to the prior screen. Kodi will not open. Please help. Thank you very much.