removing appstore android from the cloud there has been discussion about this item in earlier years, but I want to know this: 
I want to reload the App Store because the apps I bought with it do not function any longer after I removed the App Store (because I did not plan on any further purchases via this store); reloading fails, probably because the version I tried to remove is not removed from the Cloud Library. It seems to me impossible to acces the Cloud-library. So: what to do?
If you've installed payed apps from Amazon's store, they will need the corresponding Amazon app to work: it is used to verify their license. So if you uninstall the Amazon app, they no longer can do that – and thus refuse to work, as they assume you've got no valid license.

So you've few choices:


re-install the Amazon app
stop using those apps (uninstall them)
uninstall those apps you've bought from Amazon, buy them again from another store you plan to keep, and re-install them from there.