diff --git a/src/components/Interactive.js b/src/components/Interactive.js
index 6e45a34cb45800ae1ad31318896f3129c69143e3..cdd47b3f024df1b947f8562d76aa137783ec0db4 100644
--- a/src/components/Interactive.js
+++ b/src/components/Interactive.js
@@ -10,6 +10,10 @@ export default  function Interactive() {
     {"name" : "CTA DIRAC", "url" : "https://ccdcta-web.in2p3.fr/DIRAC/"},
   ]
 
+  if ((!list_of_jnotebooks) || (!list_of_jhubs) || (!list_of_batchsystems)) {
+    return null
+  }
+
   return (
     <Container fluid>
     <Form className="mt-5">
diff --git a/src/routes/Routes.js b/src/routes/Routes.js
index bbc13ffe60536581049bd1137908b827881d9923..8e0d49a5fb700264fbaa029cbdae0a031f03dda4 100644
--- a/src/routes/Routes.js
+++ b/src/routes/Routes.js
@@ -72,7 +72,7 @@ export default function Routes() {
 
         </Switch>
 
-      <footer><small>esap-gui version 2 jul 2021 - 14:00</small></footer>
+      <footer><small>esap-gui version 2 jul 2021 - 15:00</small></footer>
     </Router>
   );
 }