Fixed a warning message when websites get deleted.

server/plugins-available/apache2_plugin.inc.php

@@ -927,7 +927,7 @@ class apache2_plugin {
 		$web_config = $app->getconf->get_server_config($conf["server_id"], 'web');
 
 		//* Check if this is a chrooted setup
-		if($web_config['website_basedir'] != '' && @is_file($web_config['/var/www'].'/etc/passwd')) {
+		if($web_config['website_basedir'] != '' && @is_file($web_config['website_basedir'].'/etc/passwd')) {
 			$apache_chrooted = true;
 		} else {
 			$apache_chrooted = false;