diff --git a/static/js/main.js b/static/js/main.js
index c1a8661..e68321c 100644
--- a/static/js/main.js
+++ b/static/js/main.js
@@ -666,7 +666,11 @@ function updateDemandes() {
                 }
             }
             else {
-                console.error(data.why);
+                if (data.why == "Not authentificated") {
+                    show_page('#login-page');
+                } else {
+                    alert(data.why);
+                }
             }
         }