Kodi 17.3 wont launch.

HI,
Hope theres someone out there who can help me with this, searched the internet and youtube but no joy.

I have been running version 16.1 (i think) for about a year on my firestick and had no problems, recently with the security issues i decided to upgrade to the 17.3.

The problem is i cant get it to launch, The page comes up saying kodi is starting for the first time, the progress bar goes to the end, screen goes black and then goes back to the launch page. (the page where the options for launch, force stop, clear data and clear cache is on).
I have tried uninstalling and reinstalling approx 5 times, restarting firestick after every attempt at launch, force stop and clear cache.
The version i have downloaded is the android ARMV7A(32BIT), downloads and installs as it should.
When it initially gives me the option to start/run after i have first downloaded the same error occurs except it takes me to the downloader page with a box open with this inside.

Download
File downloaded successfully to:
/sdcard/Downloader/kodi-17/3-Krypton-armeabi-
v7a(4).apk
(with the options of :- Install, Delete, Done)

I have tried installing (which it had already done) and Done.whichever one i choose makes no difference.
Coming out of the downloader page, onto the homepage, across the top to settings, apps, manage installed apps, kodi and launch but no joy.

Any ideas, any help would be much appreciated.