Can't install new Padshop 2 content

I’m on a Mac, running OS 10.13.6

Upgraded from Padshop Pro to Padshop 2. The new plugin is activated. I downloaded the library material with the Download Assistant and am trying to install it with the Library Manager. However, I keep getting a message that I’m not using the latest Library Manager, which is not true. So the only working library I have is Granular Guitars. No factory content and Zero Gravity isn’t working either; I’d like to remove it and re-download as others have done but it won’t let me because the Library Manager isn’t working.

Any idea what’s going on? I’m very frustrated. Any help would be much appreciated. Thx.