diff --git a/src/ninegate-1.0/src/Cadoles/CoreBundle/EventListener/uploadListener.php b/src/ninegate-1.0/src/Cadoles/CoreBundle/EventListener/uploadListener.php
index 33d89303..93a89dc3 100644
--- a/src/ninegate-1.0/src/Cadoles/CoreBundle/EventListener/uploadListener.php
+++ b/src/ninegate-1.0/src/Cadoles/CoreBundle/EventListener/uploadListener.php
@@ -138,8 +138,11 @@ class uploadListener
                                 if($fgexit) $message="Modification fichier<br>".$filename;
                                 else $message="Création fichier<br>".$filename;
 
-                                $key=$this->em->getRepository("CadolesCoreBundle:Usergroup")->findOneBy(["group"=>$group,"user"=>$this->token->getToken()->getUser()])->getKeyvalue();
-                                $websocket = $this->container->get('cadoles.websocket.pushmessage')->send($key,$this->token->getToken()->getUser()->getId(),$group->getId(),$message);
+                                $usergroup=$this->em->getRepository("CadolesCoreBundle:Usergroup")->findOneBy(["group"=>$group,"user"=>$this->token->getToken()->getUser()]);
+                                if($usergroup) {
+                                    $key=$usergroup->getKeyvalue();
+                                    $websocket = $this->container->get('cadoles.websocket.pushmessage')->send($key,$this->token->getToken()->getUser()->getId(),$group->getId(),$message);
+                                }
                             }
                         }
                     }
diff --git a/src/ninegate-1.0/src/Cadoles/PortalBundle/Controller/BlogarticleController.php b/src/ninegate-1.0/src/Cadoles/PortalBundle/Controller/BlogarticleController.php
index 7d87cd82..abc36c7d 100644
--- a/src/ninegate-1.0/src/Cadoles/PortalBundle/Controller/BlogarticleController.php
+++ b/src/ninegate-1.0/src/Cadoles/PortalBundle/Controller/BlogarticleController.php
@@ -59,8 +59,11 @@ class BlogarticleController extends Controller
                 if($group->getFgcanshare()) {
                     $url=$this->generateUrl('cadoles_portal_'.$access.'_blogarticle_view',["id"=>$entity->getId()]);
                     $message="Création article<br><a href='$url'>".$entity->getName()."</a>";
-                    $key=$em->getRepository("CadolesCoreBundle:Usergroup")->findOneBy(["group"=>$group,"user"=>$this->getUser()])->getKeyvalue();
-                    $websocket = $this->container->get('cadoles.websocket.pushmessage')->send($key,$this->getUser()->getId(),$group->getId(),$message);
+                    $usergroup=$em->getRepository("CadolesCoreBundle:Usergroup")->findOneBy(["group"=>$group,"user"=>$this->getUser()]);
+                    if($usergroup) {
+                        $key=$usergroup->getKeyvalue();
+                        $websocket = $this->container->get('cadoles.websocket.pushmessage')->send($key,$this->getUser()->getId(),$group->getId(),$message);
+                    }
                 }
             }
 
@@ -104,8 +107,11 @@ class BlogarticleController extends Controller
                 if($group->getFgcanshare()) {
                     $url=$this->generateUrl('cadoles_portal_'.$access.'_blogarticle_view',["id"=>$entity->getId()]);
                     $message="Modification article<br><a href='$url'>".$entity->getName()."</a>";
-                    $key=$em->getRepository("CadolesCoreBundle:Usergroup")->findOneBy(["group"=>$group,"user"=>$this->getUser()])->getKeyvalue();
-                    $websocket = $this->container->get('cadoles.websocket.pushmessage')->send($key,$this->getUser()->getId(),$group->getId(),$message);
+                    $usergroup=$em->getRepository("CadolesCoreBundle:Usergroup")->findOneBy(["group"=>$group,"user"=>$this->getUser()]);
+                    if($usergroup) {
+                        $key=$usergroup->getKeyvalue();
+                        $websocket = $this->container->get('cadoles.websocket.pushmessage')->send($key,$this->getUser()->getId(),$group->getId(),$message);
+                    }
                 }
             }
 
diff --git a/src/ninegate-1.0/src/Cadoles/PortalBundle/Controller/BookmarkController.php b/src/ninegate-1.0/src/Cadoles/PortalBundle/Controller/BookmarkController.php
index 8e1cc10c..61d21a85 100644
--- a/src/ninegate-1.0/src/Cadoles/PortalBundle/Controller/BookmarkController.php
+++ b/src/ninegate-1.0/src/Cadoles/PortalBundle/Controller/BookmarkController.php
@@ -67,8 +67,11 @@ class BookmarkController extends Controller
                 foreach($pagewidget->getPage()->getGroups() as $groupchat) {
                     if($groupchat->getFgcanshare()) {
                         $message="Création favoris<br><a href='".$data->getUrl()."' target='_blank'>".$data->getTitle()."</a>";
-                        $key=$em->getRepository("CadolesCoreBundle:Usergroup")->findOneBy(["group"=>$groupchat,"user"=>$this->getUser()])->getKeyvalue();
-                        $websocket = $this->container->get('cadoles.websocket.pushmessage')->send($key,$this->getUser()->getId(),$groupchat->getId(),$message);
+                        $usergroup=$em->getRepository("CadolesCoreBundle:Usergroup")->findOneBy(["group"=>$groupchat,"user"=>$this->getUser()]);
+                        if($usergroup) {
+                            $key=$usergroup->getKeyvalue();
+                            $websocket = $this->container->get('cadoles.websocket.pushmessage')->send($key,$this->getUser()->getId(),$groupchat->getId(),$message);
+                        }
                     }
                 }
             }
@@ -155,8 +158,11 @@ class BookmarkController extends Controller
                 foreach($pagewidget->getPage()->getGroups() as $groupchat) {
                     if($groupchat->getFgcanshare()) {
                         $message="Modification favoris<br><a href='".$data->getUrl()."' target='_blank'>".$data->getTitle()."</a>";
-                        $key=$em->getRepository("CadolesCoreBundle:Usergroup")->findOneBy(["group"=>$groupchat,"user"=>$this->getUser()])->getKeyvalue();
-                        $websocket = $this->container->get('cadoles.websocket.pushmessage')->send($key,$this->getUser()->getId(),$groupchat->getId(),$message);
+                        $usergroup=$em->getRepository("CadolesCoreBundle:Usergroup")->findOneBy(["group"=>$groupchat,"user"=>$this->getUser()]);
+                        if($usergroup) {
+                            $key=$usergroup->getKeyvalue();
+                            $websocket = $this->container->get('cadoles.websocket.pushmessage')->send($key,$this->getUser()->getId(),$groupchat->getId(),$message);
+                        }
                     }
                 }
             }
diff --git a/src/ninegate-1.0/src/Cadoles/PortalBundle/Controller/CalendareventController.php b/src/ninegate-1.0/src/Cadoles/PortalBundle/Controller/CalendareventController.php
index 3476870e..fea73611 100644
--- a/src/ninegate-1.0/src/Cadoles/PortalBundle/Controller/CalendareventController.php
+++ b/src/ninegate-1.0/src/Cadoles/PortalBundle/Controller/CalendareventController.php
@@ -128,8 +128,11 @@ class CalendareventController extends Controller
         foreach($calendarevent->getCalendar()->getGroups() as $group) {
             if($group->getFgcanshare()) {
                 $message="Création évènement<br>".$calendarevent->getName()."<br>du ".$start->format("d/m/Y H:i")." au ".$end->sub(new \DateInterval('PT1M'))->format("d/m/Y H:i");
-                $key=$em->getRepository("CadolesCoreBundle:Usergroup")->findOneBy(["group"=>$group,"user"=>$this->getUser()])->getKeyvalue();
-                $websocket = $this->container->get('cadoles.websocket.pushmessage')->send($key,$this->getUser()->getId(),$group->getId(),$message);
+                $usergroup=$em->getRepository("CadolesCoreBundle:Usergroup")->findOneBy(["group"=>$group,"user"=>$this->getUser()]);
+                if($usergroup) {
+                    $key=$usergroup->getKeyvalue();
+                    $websocket = $this->container->get('cadoles.websocket.pushmessage')->send($key,$this->getUser()->getId(),$group->getId(),$message);
+                }
             }
         }
 
@@ -181,8 +184,11 @@ class CalendareventController extends Controller
         foreach($calendarevent->getCalendar()->getGroups() as $group) {
             if($group->getFgcanshare()) {
                 $message="Modification évènement<br>".$calendarevent->getName()."<br>du ".$start->format("d/m/Y H:i")." au ".$end->sub(new \DateInterval('PT1M'))->format("d/m/Y H:i");
-                $key=$em->getRepository("CadolesCoreBundle:Usergroup")->findOneBy(["group"=>$group,"user"=>$this->getUser()])->getKeyvalue();
-                $websocket = $this->container->get('cadoles.websocket.pushmessage')->send($key,$this->getUser()->getId(),$group->getId(),$message);
+                $usergroup=$em->getRepository("CadolesCoreBundle:Usergroup")->findOneBy(["group"=>$group,"user"=>$this->getUser()]);
+                if($usergroup) {
+                    $key=$usergroup->getKeyvalue();
+                    $websocket = $this->container->get('cadoles.websocket.pushmessage')->send($key,$this->getUser()->getId(),$group->getId(),$message);
+                }
             }
         }