Kaltura red5 server is not starting

I am using Ubuntu 14.04 and I am trying to set up Kaltura, by using the instructions below.

I am struck at the step "Configure Red5 server", it seems I have installed Red5 server but failed to start server, so I am not able to load "hostname:5080"(browser shows screen with title "Unable to connect") and finish my installation process.

When I check status of Red server it displayed the information below.

sudo service red5-server status


 * Checking status of Flash streaming server red5-server                                                                          [fail]

When I tried command ps fax | grep red5 then it display result below.

3806 pts/13   S+     0:00          |       \_ grep --color=auto red5

Kindly share your idea about troubleshooting this issue

Kindly note, it will load login page while we try to access "hostname/kmc", browser will ask for login and it will redirect to "hostname/index.php/kmc/kmc2"(after successful login), then browser shows message "Unable to connect".

Thanks you