xml export problem

[1050]

Hi,
I want to get a XML file from my products but it gives me his error :

URI: index2.php?option=com_eshop&task=export&mosmsg=XML+%D9%85%D8%AD%D8%B5%D9%88%D9%84%D8%A7%D8%AA+%D9%86%D8%AA%D9%88%D8%A7%D9%86%D8%B3%D8%AA+%D8%B0%D8%AE%DB%8C%D8%B1%D9%87+%D8%B4%D9%88%D8%AF
Path: /includes/Core/filemanager.class.php
Line: 308
is_dir() [function.is-dir]: open_basedir restriction in effect. File(/var/www/vhosts/1050.ir/httpdocs/..) is not within the allowed path(s): (/var/www/vhosts/1050.ir/httpdocs/:/tmp/)

I try to find the problem but I can't. please help me

[Ivan Trebješanin]

What is your Elxis version?