Wiki rss encoding changed?

My rss client (rss2email) complains about "unknown encoding" since yesterday :?  (no further details :x)

Has anything changed? Does anyone else have problems? I'm using

I'm using Google Reader, and I seem to be able to receive updates from the wiki RSS feed.

The URL I'm using (although I'm not sure what that dokuwiki query string business at the end is):

I'm not sure how rss2email works, but have you tried removing and re-adding it?

no, re-adding does not help :’(