I have uploaded the sitemap according to the guidelines by www.xml-sitemaps.com but I can't find it now on my website ( ie. sitmap.xml ). Even the crawl stats of website are fine after uploading the sitemap.

please try to reupload it, or contact your hosting support to find out why file is inaccessible after uploading to your website.
thanks for your support. I tried to re upload but its still inaccessible.
Can you please check my website : stylishhomerugs.com ?

Waiting for your reply.