diff -r 4c7ab16e5845 -r 19f0b7803aed server/php/basic/resources/library/renkanFunctions.php
--- a/server/php/basic/resources/library/renkanFunctions.php	Mon May 25 01:18:12 2015 +0200
+++ b/server/php/basic/resources/library/renkanFunctions.php	Fri May 29 14:57:37 2015 +0200
@@ -16,7 +16,12 @@
     function saveRenkan($renkanId, $renkanStr) {
 
         $renkanJson = json_decode($renkanStr, true);
-        $title = $renkanJson["title"];
+        if(array_key_exists("title", $renkanJson)) {
+            $title = $renkanJson["title"];
+        }
+        else {
+            $title = "";
+        }
 
         $res = updateProject($renkanId, $title, $renkanStr);