xml sitemap problems with a taxonomy

Hi!

I have a woocommerce site with wmpl and this glorious Seo plugin…
All works fine except the xml sitemap with one taxonomy (an attribute for products)…

http://www.perfumesba.com/pa_olfactory-groups-sitemap.xml
http://www.perfumesba.com.ar/pa_olfactory-groups-es-sitemap.xml

This taxonomy has this name: olfactory-groups

i think that the problem here could come because of the “-“?

look the index sitemap: http://www.perfumesba.com/sitemap_index.xml

the two sitemaps for this taxonomy doesnt work (in both languages). but the other product attributes… are working perfect

Any hint?

Thanks!

http://wordpress.org/extend/plugins/wordpress-seo/