I've just installed the plugin, and the Sitemap for news works great (http://www.topito.com/sitemap-news.xml) but the general Sitemap does not work : http://www.topito.com/sitemap.xml (same here http://www.topito.com/?feed=sitemap)
It's a basic installation of wordpress (no multi-site, no sub-directory) and I've tried to disable W3 total cache plugin and re-validate permalinks.
Any idea how I could fix this ??
Thanks for your help,