php - How to fix the open_basedir restriction error?

Hy I have a script called dataface, on a shared host it outputs all the time this warning

    Warning: file_exists() [function.file-exists]: open_basedir restriction in effect. 
File(/usr/local/lib/php/Dataface/FormTool/text.php) is not within the allowed path(s):
 (/home/:/usr/lib/php:/tmp) in /home/a4385243/public_html/dataface/Dataface/FormTool.php on line 654

How can i fix this ?