Comment 11 for bug 705271

Temporary workaround (patch)

This does not solve the gstreamer errors, but it does remove the error dialog (which stops the stream)

locate pithos
$ which pithos
/usr/bin/pithos

apply the patch

The patch comments out 2 lines in pithos:
* line 524, the error message being shown on the song after song has finished
* line 526, the error counter which will causes the error dialog to show up after too many errors are encounter and stop playback