add session_start()

public_html/deployment/index.php

@@ -2,6 +2,8 @@
 
 define("APP_VERSION", '2.0-alpha');
 
+session_start();
+
 require_once("./classes/project_gui.class.php");
 require_once('./classes/queryparam.class.php');
 # require_once('./classes/icon.class.php');