Installing Proxylizer... PHP error!?

Hi,

I’m just install and configure Proxylizer on the CentOS 5 operating system. I did everything as it should according to instructions (http://wiki.mikrotik.com/wiki/Proxylizer/Getting_Started#Install_method_1) but I have a problem …

When try to access http://ipaddress_of_server/proxylizer/ I getting this error:

Notice: Undefined index: action in /var/www/proxylizer/index.php on line 27

Notice: Undefined index: dbtype in /var/www/proxylizer/functions.php on line 31

Notice: Undefined index: dbtype in /var/www/proxylizer/functions.php on line 34

Notice: Undefined index: dbhost in /var/www/proxylizer/functions.php on line 36

Notice: Undefined index: dbhost in /var/www/proxylizer/functions.php on line 39

Notice: Undefined index: dbname in /var/www/proxylizer/functions.php on line 41

Notice: Undefined index: dbname in /var/www/proxylizer/functions.php on line 44

Notice: Undefined index: dbusername in /var/www/proxylizer/functions.php on line 46

Notice: Undefined index: dbusername in /var/www/proxylizer/functions.php on line 49

Notice: Undefined index: paswrd in /var/www/proxylizer/functions.php on line 51

Notice: Undefined index: paswrd in /var/www/proxylizer/functions.php on line 54

Notice: Undefined index: webusername in /var/www/proxylizer/setup.php on line 38

Notice: Undefined index: webpaswrd in /var/www/proxylizer/setup.php on line 39

Warning: require_once(DB.php) [function.require-once]: failed to open stream: No such file or directory in /var/www/proxylizer/setup.php on line 41

Fatal error: require_once() [function.require]: Failed opening required 'DB.php' (include_path='.:/usr/share/pear:/usr/share/php') in /var/www/proxylizer/setup.php on line 41

“Fatal error: require_once() [function.require]: Failed opening required ‘DB.php’ (include_path=‘.:/usr/share/pear:/usr/share/php’) in /var/www/proxylizer/setup.php on line 41” -----> Its mean that your proxylizer main directory not writeable and cant be create DB.php