urllib error at startup

Hi everyone,
I am trying to set up Galaxy on my MacbookPro. I managed to solve some errors when running run.sh but I am stuck at this error message:

/request.py", line 643, in http_error_default
raise HTTPError(req.full_url, code, msg, hdrs, fp)
urllib.error.HTTPError: HTTP Error 404: Not Found

Is anybody able to help with that?
Thanks very much