Warning: is_file(): open_basedir restriction in effect

[donmah]

I'm very new to PHP and MySQL. I'm trying to implement opendocman for my college project. I'm have issues when I try to set it up on byethost free web space.

I have followed all of the instructions for initial configuration. However I keep on getting the following error:

Warning: is_file(): open_basedir restriction in effect. File(plug-ins/index.html/index.html_class.php) is not within the allowed path(s): (/php_sessions:/tmp:/var/www/errors:/home/vol8_7/byethost11.com/b11_14904573/htdocs) in /home/vol8_7/byethost11.com/b11_14904573/htdocs/opendocman/opendocman-1.2.7.2/Plugin_class.php on line 57


My config.php looks like this

define('DB_HOST', 'sql107.byethost11.com');
Can anyone advise where else I can search for the error and connect to the database.

Thanks,