Hi,
I cannot update the pro version in extensions manager, it always says, that I must buy pro version first. But I bought it. When I go to Articles Anywhere System-Plugin it asks me for download key. I enter the key, but after clicking on save, the popup with download key comes again and asks me for it again... never ending story. I also created a new download key, but with that I experienced the same issue. Now I have two keys but still no update 🙁

I hope that is what you need. Maybe you can figure out, why I cannot upload and install your extensions anymore, too?

It worked now. Thanks.