After installing my update everything is there but Addons do not update anymore



Hello I am using kodi 20.5 on my Fire TV 4k

I make often a backup from my system and when I install this backup lets say to another Fire TV 4K with kodi 20.5 everything is on his place.
Every skin I chose and all Addons. Everything looks perfect.

But since some days I notices that many of my Addons are not Aktive and the do not update from the Repos from it self.
On my original fire TV where I took the backup it works.

I have all settings correctly.. Where is this issue coming from ?

I have done this a lot of times but since 3 days 90% of my Addons are not updating. 

Can anyone help please ?