Can't install Kyle Webster brushes

[juntoinvestments]

When trying to install all Kyle Webster brushes at https://www.adobe.com/products/photoshop/brushes.html I get the following message even though I am logged in and am subscribed to CC with Photoshop CC 2020 installed?

Kyle's brushes are just for Adobe Photoshop subscribers.
If you don't yet have Photoshop, come join us.

What can I do about it?

[Jeff Arola]

What happens when you try Sign in to download?

[Romana29934823foxd]

Firstly, it demands signing up even when I am already signed in.

When I click on "sign in to download" and start to write my email, it kicks me of that window after few seconds automatically.

Do you have any advice for that please? We have full licence, I have no idea, whats the problem.