DynaSpace problems downloading

Hello everyone

I have tried to download the DynaShape package but it does not seem to work. The package appears to be installed but does not appear among the other nodes, as the image shows.

I have also tried to download the example of DynaSpace from this site
https://dynamobim.org/space-planning-in-dynamo-with-dynaspace/

But it doesn’t work either, I can’t open the file as it is a RAR file instead of a DYN file. Someone who can help me?

Sincerely,
Ebba