I had previously used an XML Sitemap auto generator on the AIOSEO plugin but wanted to make some changes to the prioritization of some of the URLs that I could not change through the functions of the plugin, I downloaded the XML Sitemap by going to the /sitemap.xml url and right clicking and saving, opened it with Sublime and changed the priorities and re-saved it as an XML Document.
Then I turned off the auto generated sitemap and uploaded the recently saved altered sitemap with the file name sitemap.xml via FTP the the root directory of the site, this was all I thought I needed to do but upon returning to the /sitemap.xml url it brings me to my sites 404 message.
Any ideas as to why it is not working? Or have I uploaded it incorrectly