From d60ba903c06d9ea2953756f077cb93616f640644 Mon Sep 17 00:00:00 2001
From: Alexander Ebert <ebert@woltlab.com>
Date: Thu, 15 Aug 2024 12:00:58 +0200
Subject: [PATCH] Fix the handling of users that do not exist anymore

---
 .../job/ServiceWorkerDeliveryBackgroundJob.class.php         | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/wcfsetup/install/files/lib/system/background/job/ServiceWorkerDeliveryBackgroundJob.class.php b/wcfsetup/install/files/lib/system/background/job/ServiceWorkerDeliveryBackgroundJob.class.php
index 8be21b399f..3cdd7da3a3 100644
--- a/wcfsetup/install/files/lib/system/background/job/ServiceWorkerDeliveryBackgroundJob.class.php
+++ b/wcfsetup/install/files/lib/system/background/job/ServiceWorkerDeliveryBackgroundJob.class.php
@@ -58,6 +58,11 @@ final class ServiceWorkerDeliveryBackgroundJob extends AbstractUniqueBackgroundJ
     {
         $serviceWorker = new ServiceWorker($serviceWorkerID);
         $user = UserProfileRuntimeCache::getInstance()->getObject($serviceWorker->userID);
+        if ($user === null) {
+            // The user does not exist anymore.
+            return;
+        }
+
         $style = new Style($user->styleID);
         if (!$style->styleID) {
             $style = StyleHandler::getInstance()->getStyle();
-- 
2.20.1