diff --git a/.ddev/config.yaml b/.ddev/config.yaml
index 82620c8..ca0763c 100644
--- a/.ddev/config.yaml
+++ b/.ddev/config.yaml
@@ -1,7 +1,7 @@
 name: surfcamp-team6
-type: php
+type: typo3
 docroot: public
-php_version: "8.2"
+php_version: "8.3"
 nodejs_version: "20"
 webserver_type: nginx-fpm
 xdebug_enabled: false
diff --git a/composer.json b/composer.json
index 038dc7b..97e2c54 100644
--- a/composer.json
+++ b/composer.json
@@ -23,7 +23,7 @@
     "config": {
         "bin-dir": "bin",
         "platform": {
-            "php": "8.2.0"
+            "php": "8.3.6"
         },
         "sort-packages": true,
         "allow-plugins": {
@@ -36,7 +36,7 @@
     "minimum-stability": "dev",
     "prefer-stable": true,
     "require": {
-        "php": "^8.2",
+        "php": "^8.3",
         "b13/backendpreviews": "dev-v13-compat",
         "helhum/dotenv-connector": "^3.1",
         "praetorius/vite-asset-collector": "^1.9",
diff --git a/composer.lock b/composer.lock
index 4b4dbbe..4218ce2 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "577d00ca3f020982a3a77bd59fc4dc52",
+    "content-hash": "2094bef3f3ee0e546e9bbc2ca586e2d7",
     "packages": [
         {
             "name": "b13/backendpreviews",
@@ -7615,11 +7615,11 @@
     "prefer-stable": true,
     "prefer-lowest": false,
     "platform": {
-        "php": "^8.2"
+        "php": "^8.3"
     },
     "platform-dev": [],
     "platform-overrides": {
-        "php": "8.2.0"
+        "php": "8.3.6"
     },
     "plugin-api-version": "2.6.0"
 }
diff --git a/config/sites/advent/config.yaml b/config/sites/advent/config.yaml
index 23b9d53..3209343 100644
--- a/config/sites/advent/config.yaml
+++ b/config/sites/advent/config.yaml
@@ -18,3 +18,8 @@ rootPageId: 3
 websiteTitle: ''
 dependencies:
   - surfcamp/success-advent
+errorHandling:
+  -
+    errorCode: 404
+    errorHandler: Page
+    errorContentSource: 't3://page?uid=9'
diff --git a/config/sites/career/config.yaml b/config/sites/career/config.yaml
index f95d213..be13e52 100644
--- a/config/sites/career/config.yaml
+++ b/config/sites/career/config.yaml
@@ -18,3 +18,8 @@ rootPageId: 4
 websiteTitle: ''
 dependencies:
   - surfcamp/success-career
+errorHandling:
+  -
+    errorCode: 404
+    errorHandler: Page
+    errorContentSource: 't3://page?uid=9'
diff --git a/config/sites/product-launch/config.yaml b/config/sites/product-launch/config.yaml
index cc0af3c..664f7a2 100644
--- a/config/sites/product-launch/config.yaml
+++ b/config/sites/product-launch/config.yaml
@@ -16,3 +16,8 @@ rootPageId: 1
 websiteTitle: ''
 dependencies:
   - surfcamp/success-product-launch
+errorHandling:
+  -
+    errorCode: 404
+    errorHandler: Page
+    errorContentSource: 't3://page?uid=9'
diff --git a/config/sites/sets-promotion/config.yaml b/config/sites/sets-promotion/config.yaml
index 88fee1d..c01d3b2 100644
--- a/config/sites/sets-promotion/config.yaml
+++ b/config/sites/sets-promotion/config.yaml
@@ -18,3 +18,8 @@ rootPageId: 5
 websiteTitle: ''
 dependencies:
   - surfcamp/success-sets-promotion
+errorHandling:
+  -
+    errorCode: 404
+    errorHandler: Page
+    errorContentSource: 't3://page?uid=9'
diff --git a/config/sites/whitepaper/config.yaml b/config/sites/whitepaper/config.yaml
index 90ba74d..c07a8d3 100644
--- a/config/sites/whitepaper/config.yaml
+++ b/config/sites/whitepaper/config.yaml
@@ -18,3 +18,8 @@ rootPageId: 2
 websiteTitle: ''
 dependencies:
   - surfcamp/success-whitepaper
+errorHandling:
+  -
+    errorCode: 404
+    errorHandler: Page
+    errorContentSource: 't3://page?uid=9'