Install - error URL

1
When I install DownloadPsychtoolbox in the matlab, appears this error:

svn: E170013: Unable to connect to a repository at URL 'https://github.com/Psychtoolbox-3/Psychtoolbox-3/branches/beta/Psychtoolbox'

I searched this URL and realy doesn't exist. So, why the program is trying to acess this page?
What I must to do?

Thank you!!

2
Works correctly, just tested. Assuming you have the latest DownloadPsychtoolbox from our website, it must be some network (firewall?) problem on your side. Retry again later, or try downloading from a different network.

-mario