What has happened once you entered the save mode? Pretty simple. Once you end up in safe mode, we did a backup of your existing Kodi installation in a different folder. From a technical point of view we simply renamed the existing (and failing) /storage/.kodi
folder to /storage/.kodi.FAILED
and triggered a reboot after that. That will mean your next Kodi start will end up with a vanilla Kodi but with a special red background and a notification screen, that you now have entered the save mode. It will look like this: