[esp-r] Problem with subversion download

[francesco.frontini at polimi.it]

Hi all,
I am trying to download the latest version of ESPr (11.7) using the command:

svn checkout https://esp-r.net/espr/esp-r/trunk

but unfortunately I received this error message:

svn: Could not open the requested SVN filesystem

Any Idea or suggestion.

If I use the http instead of the https, it asks me the Username and the PSW.

I would like to download the native version (not precompiled).
I am using Opensuse.

Thank you very much in advance

Francesco