diff --git a/Manager/NotificationManager.php b/Manager/NotificationManager.php
index 7ae25a4..f6a406f 100644
--- a/Manager/NotificationManager.php
+++ b/Manager/NotificationManager.php
@@ -162,6 +162,8 @@ public function sendNotificationHttp(NotificationContentModel $notificationConte
             'message' => '',
             'details' => [self::HTTP_UNHANDLED_ERROR],
         ];
+        
+        $response = false;
 
         try {
             $response = $this->httpClient->request(
@@ -231,6 +233,8 @@ public function sendNotificationsHttp(array $notificationContentModels): array
                 $this->createRequestBody($notificationContentModels)
             ),
         ];
+        
+        $response = false;
 
         try {
             $response = $this->httpClient->request(