diff --git a/application/cmdbabstract.class.inc.php b/application/cmdbabstract.class.inc.php
index 72dae8243b..b45e1f2b29 100644
--- a/application/cmdbabstract.class.inc.php
+++ b/application/cmdbabstract.class.inc.php
@@ -798,7 +798,7 @@ HTML
 					$oBlock->Display($oPage, 'notifications_'.$sNotifClass, [
 						'menu' => false,
 						'panel_title' => MetaModel::GetName($sNotifClass),
-						'panel_icon' => MetaModel::GetClassIcon($sNotifClass),
+						'panel_icon' => MetaModel::GetClassIcon($sNotifClass, false),
 					]);
 				}
 			}
diff --git a/datamodels/2.x/itop-incident-mgmt-itil/datamodel.itop-incident-mgmt-itil.xml b/datamodels/2.x/itop-incident-mgmt-itil/datamodel.itop-incident-mgmt-itil.xml
index fca105a267..b542a9fe4d 100755
--- a/datamodels/2.x/itop-incident-mgmt-itil/datamodel.itop-incident-mgmt-itil.xml
+++ b/datamodels/2.x/itop-incident-mgmt-itil/datamodel.itop-incident-mgmt-itil.xml
@@ -1208,8 +1208,8 @@
 	{
 		parent::DisplayBareRelations($oPage, $bEditMode);
 
-		if (MetaModel::IsValidClass('KnownError'))
-		{
+    $sKnownErrorClass = 'KnownError';
+    if (MetaModel::IsValidClass($sKnownErrorClass)) {
 			//Search for known errors
 			$oPage->SetCurrentTab('Class:UserRequest:KnownErrorList');
 			$iTicketID = $this->GetKey();;
@@ -1223,7 +1223,11 @@
 			{
 				$oPage->SetCurrentTab('Class:UserRequest:KnownErrorList');
 			}
-			self::DisplaySet($oPage, $oKnownErrorSet, array ('menu' => false));
+			self::DisplaySet($oPage, $oKnownErrorSet, [
+        'menu' => false,
+        'panel_title' => Dict::S('Class:UserRequest:KnownErrorList'),
+        'panel_icon' => MetaModel::GetClassIcon($sKnownErrorClass, false),
+      ]);
 		}
 	}]]></code>
         </method>
diff --git a/datamodels/2.x/itop-request-mgmt-itil/datamodel.itop-request-mgmt-itil.xml b/datamodels/2.x/itop-request-mgmt-itil/datamodel.itop-request-mgmt-itil.xml
index 76b6f72060..0281f453df 100755
--- a/datamodels/2.x/itop-request-mgmt-itil/datamodel.itop-request-mgmt-itil.xml
+++ b/datamodels/2.x/itop-request-mgmt-itil/datamodel.itop-request-mgmt-itil.xml
@@ -1365,13 +1365,13 @@
 	{
 		parent::DisplayBareRelations($oPage, $bEditMode);
 
-		if (MetaModel::IsValidClass('KnownError'))
-		{
+    $sKnownErrorClass = 'KnownError';
+		if (MetaModel::IsValidClass($sKnownErrorClass)) {
 			//Search for known errors
 			$oPage->SetCurrentTab('Class:UserRequest:KnownErrorList');
 			$iTicketID = $this->GetKey();;
-			$oKnownErrorSet = new CMDBObjectSet(DBObjectSearch::FromOQL("SELECT KnownError AS ke JOIN lnkErrorToFunctionalCI AS l1 ON l1.error_id=ke.id JOIN FunctionalCI AS ci ON l1.functionalci_id=ci.id JOIN lnkFunctionalCIToTicket AS l2 ON l2.functionalci_id=ci.id WHERE l2.ticket_id=$iTicketID"));
-			$iNumberKE=$oKnownErrorSet->count();
+			$oKnownErrorSet = new CMDBObjectSet(DBObjectSearch::FromOQL("SELECT $sKnownErrorClass AS ke JOIN lnkErrorToFunctionalCI AS l1 ON l1.error_id=ke.id JOIN FunctionalCI AS ci ON l1.functionalci_id=ci.id JOIN lnkFunctionalCIToTicket AS l2 ON l2.functionalci_id=ci.id WHERE l2.ticket_id=$iTicketID"));
+			$iNumberKE = $oKnownErrorSet->count();
 			if ($iNumberKE > 0)
 			{
 				$oPage->SetCurrentTab('Class:UserRequest:KnownErrorList', Dict::S('Class:UserRequest:KnownErrorList')." ($iNumberKE)");
@@ -1380,7 +1380,11 @@
 			{
 				$oPage->SetCurrentTab('Class:UserRequest:KnownErrorList');
 			}
-			self::DisplaySet($oPage, $oKnownErrorSet, array ('menu' => false));
+			self::DisplaySet($oPage, $oKnownErrorSet, [
+			  'menu' => false,
+        'panel_title' => Dict::S('Class:UserRequest:KnownErrorList'),
+        'panel_icon' => MetaModel::GetClassIcon($sKnownErrorClass, false),
+			]);
 		}
 	}]]></code>
         </method>
diff --git a/datamodels/2.x/itop-request-mgmt/datamodel.itop-request-mgmt.xml b/datamodels/2.x/itop-request-mgmt/datamodel.itop-request-mgmt.xml
index 30676cb5fc..a05ba7f8ba 100755
--- a/datamodels/2.x/itop-request-mgmt/datamodel.itop-request-mgmt.xml
+++ b/datamodels/2.x/itop-request-mgmt/datamodel.itop-request-mgmt.xml
@@ -1408,13 +1408,13 @@
 	{
 		parent::DisplayBareRelations($oPage, $bEditMode);
 
-        if (MetaModel::IsValidClass('KnownError'))
-        {
+        $sKnownErrorClass = 'KnownError';
+        if (MetaModel::IsValidClass($sKnownErrorClass)) {
             //Search for known errors
             $oPage->SetCurrentTab('Class:UserRequest:KnownErrorList');
             $iTicketID = $this->GetKey();;
-            $oKnownErrorSet = new CMDBObjectSet(DBObjectSearch::FromOQL("SELECT KnownError AS ke JOIN lnkErrorToFunctionalCI AS l1 ON l1.error_id=ke.id JOIN FunctionalCI AS ci ON l1.functionalci_id=ci.id JOIN lnkFunctionalCIToTicket AS l2 ON l2.functionalci_id=ci.id WHERE l2.ticket_id=$iTicketID"));
-            $iNumberKE=$oKnownErrorSet->count();
+            $oKnownErrorSet = new CMDBObjectSet(DBObjectSearch::FromOQL("SELECT $sKnownErrorClass AS ke JOIN lnkErrorToFunctionalCI AS l1 ON l1.error_id=ke.id JOIN FunctionalCI AS ci ON l1.functionalci_id=ci.id JOIN lnkFunctionalCIToTicket AS l2 ON l2.functionalci_id=ci.id WHERE l2.ticket_id=$iTicketID"));
+            $iNumberKE = $oKnownErrorSet->count();
             if ($iNumberKE > 0)
             {
                 $oPage->SetCurrentTab('Class:UserRequest:KnownErrorList', Dict::S('Class:UserRequest:KnownErrorList')." ($iNumberKE)");
@@ -1423,7 +1423,11 @@
             {
                 $oPage->SetCurrentTab('Class:UserRequest:KnownErrorList');
             }
-            self::DisplaySet($oPage, $oKnownErrorSet, array ('menu' => false));
+            self::DisplaySet($oPage, $oKnownErrorSet, [
+              'menu' => false,
+              'panel_title' => Dict::S('Class:UserRequest:KnownErrorList'),
+              'panel_icon' => MetaModel::GetClassIcon($sKnownErrorClass, false),
+            ]);
         }
 	}]]></code>
         </method>