I am recieving Simple SiteMap 404 Error After Editing and Upload

Hello,
when checking the http://winegeographic.com/sitemap.xml

I receive

404 Error - Page Not Found
We could not find the page you were looking for. Try searching for it:

# BEGIN WordPress
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]

# add a trailing slash to /wp-admin
RewriteRule ^([_0-9a-zA-Z-]+/)?wp-admin$ $1wp-admin/ [R=301,L]

RewriteCond %{REQUEST_FILENAME} -f [OR]
RewriteCond %{REQUEST_FILENAME} -d
RewriteRule ^ - [L]
RewriteRule ^([_0-9a-zA-Z-]+/)?(wp-(content|admin|includes).*) $2 [L]
RewriteRule ^([_0-9a-zA-Z-]+/)?(.*\.php)$ $2 [L]
RewriteRule . index.php [L]
RewriteRule ^(.*/)?sitemap.xml wp-content/sitemap.php [L]
# END WordPress