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?