Google XML Sitemap w/ Admin in Oscommerce error in fopen function

We have a modified version of oscommerce and have just installed the above contribution. The project is to fix the error, and make sure the contrib is fully working and not conflicting with any of the other contribs installed Error occurs when trying to generate the sitemap from the admin page, this is the error. Warning: fopen() [[login to view URL]]: open_basedir restriction in effect. File(/[login to view URL]) is not within the allowed path(s): (/home/httpd/vhosts/[login to view URL]:/tmp) in /home/httpd/vhosts/[login to view URL] on line 592 Warning: fopen(/[login to view URL]) [[login to view URL]]: failed to open stream: Operation not permitted in /home/httpd/vhosts/[login to view URL] on line 592 ERROR: Google Product Sitemap Generation FAILED!