[Plugin: PHPFreeChat] mysql container problem

Hi, I just don’t get it. I tryed to edit every file which can posibly cause the error. Here is what I get:

Warning: mysql_pconnect() has been disabled for security reasons in /home/prestizni.net/prestizni.net/wordpress/wp-content/plugins/phpfreechat/src/containers/mysql.class.php on line 150

Warning: mysql_select_db(): supplied argument is not a valid MySQL-Link resource in /home/prestizni.net/prestizni.net/wordpress/wp-content/plugins/phpfreechat/src/containers/mysql.class.php on line 151

Warning: mysql_list_dbs(): supplied argument is not a valid MySQL-Link resource in /home/prestizni.net/prestizni.net/wordpress/wp-content/plugins/phpfreechat/src/containers/mysql.class.php on line 109

Warning: mysql_fetch_object(): supplied argument is not a valid MySQL result resource in /home/prestizni.net/prestizni.net/wordpress/wp-content/plugins/phpfreechat/src/containers/mysql.class.php on line 110

Warning: mysql_query(): supplied argument is not a valid MySQL-Link resource in /home/prestizni.net/prestizni.net/wordpress/wp-content/plugins/phpfreechat/src/containers/mysql.class.php on line 115

Warning: mysql_error(): supplied argument is not a valid MySQL-Link resource in /home/prestizni.net/prestizni.net/wordpress/wp-content/plugins/phpfreechat/src/containers/mysql.class.php on line 118

Warning: is_writable() [function.is-writable]: open_basedir restriction in effect. File(/) is not within the allowed path(s): (/home/prestizni.net/prestizni.net:/tmp:/usr/share/php/) in /home/prestizni.net/prestizni.net/wordpress/wp-content/plugins/phpfreechat/src/pfcglobalconfig.class.php on line 966

phpFreeChat cannot be initialized, please correct these errors:

    * Mysql container: create database error ''

But on other server it works fine! So where could posibly be the error?

http://wordpress.org/extend/plugins/phpfreechat/