Installation not possible

Hello

I have bought a subscription. When installing the server, I can't get any further in the step. svn co https://svn.observium.org/svn/observium/branches/stable observium
 It seems that the website requires an authetisation, but no message appears on the server. Do you have a tip?

[root@ihgpl0102 ~]# wget https://svn.observium.org/svn/observium/branches/stable
-2022-09-28 14:03:13-  https://svn.observium.org/svn/observium/branches/stable
Resolving server-proxy.xaas.swissic.ch (server-proxy.xaas.swissic.ch)... 10.32.0.17
Connecting to server-proxy.xaas.swissic.ch (server-proxy.xaas.swissic.ch)|10.32.0.17|:8080... connected.
Proxy request sent, awaiting response... 401 Unauthorized
Authorization failed.

Regards Patric