Hello,
As a preparation you have to generate peer directory (register new client) on the server side using utils/newsclient.sh, generate Verifier on client side and place it on the server
But in example you do generate in on the server:
server% ./utils/newclient.sh Alice
Place verifier to peers/6d4ac605ce8dc37c2f0bf21cb542a713/verifier
And this is what I did.