Correctif isUserSubscribedOneNewsletter()

domain/User/User/NewsletterManager.php

         return false;
     }
 
-    public function isUserSubscribedOneNewsletter(User $user): bool
+    public function isUserSubscribedOneNewsletter(User $user = null): bool
     {
+        if(!$user) {
+            return false;
+        }
+        
         return $this->isUserSubscribedNewsletter($user, Email::TYPE_NEWSLETTER)
             || $this->isUserSubscribedNewsletter($user, Email::TYPE_ORDER_TAKING);
     }