Server Transferring Error

A PHP Error was encountered

Severity: Warning

Message: file_exists(): open_basedir restriction in effect. File(/home/XXX/public_html/system/templates/default_site/site.group/index.html) is not within the allowed path(s): (/var/www/vhosts/XXX/httpdocs/:/tmp/)

XXX is the domain directory.

Filename: libraries/Template.php

Line Number: 2436

Can some help me on this, I have perform All the step given in FAQ, following is the link for FAQ.

http://ellislab.com/forums/viewthread/130555/

Manythanks