Xibo python client not working

I have xibo server 1.6.4 and client on Ubuntu 12.04. I have configure site.cfg here is configuration.

# Xibo Site Configuration File
# Copy this to site.cfg in the same folder as XiboClient.py

[Main]
# Change to the URL of your Xibo server
xmdsUrl=http://mobile.myairpc.com/vision

# Change to a random string. Used to generate your client key.
# Must be unique for all your clients
xmdsClientID=aLongRandomString

# The server key for your Xibo server
xmdsKey=123456

# How frequently to poll the Xibo server for updates (in seconds)
xmdsUpdateInterval=30

# Require a valid connection to the server for the client to start
# If the server is unavailable or the client is unlicensed, sit
# at the splash screen.
requireXmds=true

# Width of the Xibo Client window to use (or screen width if fullscreen)
width=960

# Height of the Xibo Client window to use (or screen width if fullscreen)
height=540

# Run fullscreen? Can be true or false. Case sensitive.
fullscreen=true

[Logging]
logWriter=XiboLogXmds
logLevel=10

[Stats]
collect=false
queueSize=10

after that when i run xibo player it is not display schedule. When i press i button on get file it is show cross sign in red color.

help on this issue.

The Ubuntu Player has been discontinued for some time now and is no longer supported. If you’re deploying a new system you should use a supported Player and CMS combination.