open_basedir restriction

Installed fresh for the first time, everything looks ok except cannot post, and every page has this at the bottom, or something similar with a different file name but the same restriction:
Warning: open_basedir restriction in effect. File is in wrong directory in /usr/local/plesk/apache/vhosts/mcshasta.com/httpdocs/wordpress/wp-admin/edit.php on line 178
Warning: Failed opening ‘admin-footer.php’ for inclusion (include_path=’.:/usr/local/psa/apache/lib/php’) in /usr/local/plesk/apache/vhosts/mcshasta.com/httpdocs/wordpress/wp-admin/edit.php on line 178
any quick fixes?