Pb with site map

Hello,

I have a problem withe your sitemap

http://www.thomas-cabrol.tv/wp-content/uploads/sitemap.xml
and http://www.thomas-cabrol.tv/wp-content/uploads/sitemap.xml.gz

but I can find your files (see photos).

On this pots https://premium.wpmudev.org/project/sitemaps-and-seo-wordpress-mu-style/installation/
I tried to change .htaccess but still the same pb.

Any solutions ?