Error starting cloudsn unkown encoding: CHARSET

I am on

Description: Ubuntu 10.04 LTS
Release: 10.04

I updated clousn to

cloudsn:
  Installato: 0.5.18
  Candidato: 0.5.18
  Tabella versione:
 *** 0.5.18 0
        500 http://ppa.launchpad.net/chuchiperriman/cloudsn/ubuntu/ lucid/main Packages
        100 /var/lib/dpkg/status

I tried to restart it from the menu but I got no response, so I started it from the shell and it crashed telling me:

Traceback (most recent call last):
  File "/usr/bin/cloudsn", line 6, in <module>
    cloudsn.start()
  File "/usr/lib/pymodules/python2.6/cloudsn/cloudsn.py", line 36, in start
    notification.notify (_("Error starting cloudsn"),

So I tried to make a workaround by replacing in the selected source

notification.notify (_("Error starting cloudsn"),

with

notification.notify (("Error starting cloudsn"),

Now when I launch it from the console it doesn't show anything and return to the prompt, instead as I start it from the menu I receive a notify that tells me

Error starting cloudsn unkown encoding: CHARSET