One thought here--
On Feb 5, 2014, at 20:44, Mochamad Yusuf <fearleeee gmail com> wrote:
oo-install creates an htpasswd file for you at /etc/openshift/htpasswd. By default it creates a user 'demo' and the htpasswd file should contain a record for that user. Can you check both of these things? It seems like authentication is failing or misconfigured, so I would start there.