[Mediawiki-l] rss error

[frmas]

Hi,
I was wondering since a few days why I have not received any new
information about the mods made on my wiki.
Clicking on the RSS button, I get the following message :

Erreur d'analyse XML : instruction de traitement XML ou texte pas au
début d'une entité externe
Emplacement :
http://www.arvernes.com/wiki/index.php?title=Special:Recentchanges&feed=rss
Numéro de ligne 2, Colonne 1 :<?xml version="1.0" encoding="utf-8"?>
^

Here :
http://www.arvernes.com/wiki/index.php?title=Special:Recentchanges&feed=rss

I do not know where to look at to solve that. Thank you. Francois
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