Hi this would seem to be a simple problem but I can't find a solution. The path that the sitemap.php generates is wrong. It is missing the folder that the Xenforo installation is in. How do I edit the path?
It should be pulling from the path you have set for your board URL setting in the ACP.
Are you doing an re-writing in .htaccess for your home directory?
I'm not sure if this is a real error or not. I have been testing the site map on lots of sitemap test sites and seem to get a lot of errors when testing. When I put the path in directly it seems to be fine in a browser.