@xmam68
that is not my sitemap mod you are using, my mod is called "kitsitemap" in url
@pols1337
robots.txt tells search engines to index OR to not index your site. (hast nothing to do with security).
It does not make sense to disallow google to index your site and on the other side submit your site in google webmaster tools via sitemap.
If you post the content of your robots.txt here I can tell you what's wrong...
but looks like your side is not present in google, regarding this error message