Can someone help pls I upload Google sitemap module. When I go to admin-> tools -> Google xml sitemap and click on

"STEP 1: Click [HERE] to create / update your site map. "

I get a pop up with 404 error page.

I hv uploaded the xml files and chmd to 777 and or 755 in module and nothing copies to it. I also deleted them and see if module would create it files, and nothing

Can someone point to whant I'm doing wrong

tks