Problem with Update at KODi 17 in Android

Hello, my English is not realy in of my best so i don’t know how many peoples have question and Talk about this Problem. I am inside Kode tester (Android Store) and See there many problems.
First one, why the first Skin are not to install anymore, for new Users it will be interesting the new Skin but for old Users its Not realy good.
Second Problem, all Addons are dissable if i installiert KODi 17, if i activate its all i can better make a new Install if KODi, Problem are Android boxes with little place who only i have place for KODi (1GB) and 2 or 3 Backups (3-4GB) then the Space of Box is empty and i can’t Install new addons.

Is it not possible that KODi Test in Boot for working Addons (how deep they are in System write) and then deaktivieren only that? Next step is a Log File only for Apps there are deaktivated. So its for beginners or other peoples they are use KODi Not for long time hard if they see later that KODi are Killed all.
Next step, let Beta Tester tell System what for Addons don’t work, if they in Blacklist or Not, its only that you know and can tell peoples what work and what not.