diff --git a/lib/Alchemy/Phrasea/Controller/Prod/Feed.php b/lib/Alchemy/Phrasea/Controller/Prod/Feed.php
index 41041673f9..beeaa0c4f7 100644
--- a/lib/Alchemy/Phrasea/Controller/Prod/Feed.php
+++ b/lib/Alchemy/Phrasea/Controller/Prod/Feed.php
@@ -87,7 +87,7 @@ class Feed implements ControllerProviderInterface
 
                 $entry = \Feed_Entry_Adapter::load_from_id($appbox, $id);
 
-                if ($entry->get_publisher()->get_user()->get_id() !== $user->get_id()) {
+                if (!$entry->is_publisher($user)) {
                     throw new \Exception_UnauthorizedAction();
                 }
 
@@ -107,7 +107,7 @@ class Feed implements ControllerProviderInterface
 
                     $entry = \Feed_Entry_Adapter::load_from_id($appbox, $id);
 
-                    if ($entry->get_publisher()->get_user()->get_id() !== $user->get_id()) {
+                    if (!$entry->is_publisher($user)) {
                         throw new \Exception_UnauthorizedAction();
                     }
 
@@ -186,7 +186,7 @@ class Feed implements ControllerProviderInterface
 
                     $entry = \Feed_Entry_Adapter::load_from_id($appbox, $id);
 
-                    if ($entry->get_publisher()->get_user()->get_id() !== $user->get_id()
+                    if (!$entry->is_publisher($user)
                         && $entry->get_feed()->is_owner($user) === false) {
                         throw new \Exception_UnauthorizedAction(_('Action Forbidden : You are not the publisher'));
                     }
diff --git a/lib/classes/Feed/Adapter.class.php b/lib/classes/Feed/Adapter.class.php
index d210684e7d..18059069bb 100644
--- a/lib/classes/Feed/Adapter.class.php
+++ b/lib/classes/Feed/Adapter.class.php
@@ -224,7 +224,11 @@ class Feed_Adapter extends Feed_Abstract implements Feed_Interface, cache_cachea
     {
         $this->load_publishers();
 
-        return $this->owner->get_user()->get_id() === $user->get_id();
+        if ($this->owner) {
+            return $this->owner->get_user()->get_id() === $user->get_id();
+        }
+
+        return false;
     }
 
     /**
@@ -318,10 +322,15 @@ class Feed_Adapter extends Feed_Abstract implements Feed_Interface, cache_cachea
         $stmt->closeCursor();
 
         foreach ($rs as $row) {
-            $publisher = new Feed_Publisher_Adapter($this->appbox, $row['id']);
+            try {
+                $publisher = new Feed_Publisher_Adapter($this->appbox, $row['id']);
+            } catch (\Exception_Feed_PublisherNotFound $e) {
+                continue;
+            }
             $this->publishers[$row['usr_id']] = $publisher;
-            if ($publisher->is_owner())
+            if ($publisher->is_owner()) {
                 $this->owner = $publisher;
+            }
         }
 
         return $this->publishers;
diff --git a/lib/classes/Feed/Entry/Adapter.class.php b/lib/classes/Feed/Entry/Adapter.class.php
index 829d9ef105..471d368347 100644
--- a/lib/classes/Feed/Entry/Adapter.class.php
+++ b/lib/classes/Feed/Entry/Adapter.class.php
@@ -373,8 +373,13 @@ class Feed_Entry_Adapter implements Feed_Entry_Interface, cache_cacheableInterfa
      */
     public function get_publisher()
     {
-        if ( ! $this->publisher instanceof Feed_Publisher_Adapter)
-            $this->publisher = new Feed_Publisher_Adapter($this->appbox, $this->publisher_id);
+        if ( ! $this->publisher instanceof Feed_Publisher_Adapter) {
+            try {
+                $this->publisher = new Feed_Publisher_Adapter($this->appbox, $this->publisher_id);
+            } catch (\Exception_Feed_PublisherNotFound $e) {
+
+            }
+        }
 
         return $this->publisher;
     }
@@ -386,7 +391,13 @@ class Feed_Entry_Adapter implements Feed_Entry_Interface, cache_cacheableInterfa
      */
     public function is_publisher(User_adapter $user)
     {
-        return $user->get_id() === $this->get_publisher()->get_user()->get_id();
+        $publisher = $this->get_publisher();
+
+        if ($publisher instanceof Feed_Publisher_Interface) {
+            return $user->get_id() === $publisher->get_user()->get_id();
+        }
+
+        return false;
     }
 
     /**
diff --git a/lib/classes/Feed/Publisher/Adapter.class.php b/lib/classes/Feed/Publisher/Adapter.class.php
index ef4590ab2d..54648d47ca 100644
--- a/lib/classes/Feed/Publisher/Adapter.class.php
+++ b/lib/classes/Feed/Publisher/Adapter.class.php
@@ -95,7 +95,7 @@ class Feed_Publisher_Adapter implements Feed_Publisher_Interface, cache_cacheabl
         $stmt->closeCursor();
 
         if ( ! $row)
-            throw new Exception_Feed_PublisherNotFound();
+            throw new Exception_Feed_PublisherNotFound('Publisher is not Found');
 
         $this->user = User_Adapter::getInstance($row['usr_id'], $this->appbox);
         $this->owner = ! ! $row['owner'];