Unable to download lrc files

media player: Rhythmbox 0.12.8
Python 2.6.5
distribution: Ubuntu 10.04

In "Search lrc on internet (advanced)", when I click on "Test" or when I check "Dowload the selected file" and click "OK", the following message is displayed in the terminal :

Traceback (most recent call last):
  File "/opt/lrcShow-X/mainGuiQt4.py", line 1482, in advDownLrc
    self.showInfo('<p align="center">'+txt+'</p>',True)
  File "/opt/lrcShow-X/mainGuiQt4.py", line 406, in showInfo
    self.initMainEvent(True)
  File "/opt/lrcShow-X/mainGuiQt4.py", line 561, in initMainEvent
    self.setText(lrcFile)
TypeError: QTextEdit.setText(QString): argument 1 has unexpected type 'QByteArray'

Note that all my searches fail (Nothing has been searched).
(rhythmbox-client:7523): Rhythmbox-WARNING **: La position de lecture n'est pas disponible "Artist Name"
The read position is unavailable.