diff --git a/android/app/build.gradle b/android/app/build.gradle
index b078fb4..5008dff 100644
--- a/android/app/build.gradle
+++ b/android/app/build.gradle
@@ -33,7 +33,7 @@ apply plugin: 'com.google.gms.google-services'
 apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
 
 android {
-    compileSdkVersion 33
+    compileSdkVersion 34
     ndkVersion flutter.ndkVersion
 
     compileOptions {
diff --git a/lib/models/hum_hub.dart b/lib/models/hum_hub.dart
index 50c5aa5..19873a0 100644
--- a/lib/models/hum_hub.dart
+++ b/lib/models/hum_hub.dart
@@ -1,8 +1,6 @@
 import 'dart:math';
-
-import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:humhub/models/manifest.dart';
-import 'package:humhub/util/api_provider.dart';
+import 'package:humhub/util/universal_opener_controller.dart';
 
 enum RedirectAction { opener, webView }
 
@@ -42,10 +40,9 @@ class HumHub {
       return RedirectAction.opener;
     } else {
       if (manifest != null) {
-        AsyncValue<Manifest> asyncData = await APIProvider.of(ref).request(
-          Manifest.get(manifest!.baseUrl),
-        );
-        if (asyncData.hasError) {
+        UniversalOpenerController openerController = UniversalOpenerController(url: manifest!.baseUrl);
+        String? manifestUrl = await openerController.findManifest(manifest!.baseUrl);
+        if (manifestUrl == null) {
           return RedirectAction.opener;
         } else {
           return RedirectAction.webView;
diff --git a/lib/util/loading_provider.dart b/lib/util/loading_provider.dart
index af40040..0f1eb43 100644
--- a/lib/util/loading_provider.dart
+++ b/lib/util/loading_provider.dart
@@ -2,7 +2,7 @@ import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 
 final _provider = StateProvider<GlobalKey<_ManagerState>>(
-      (ref) => GlobalKey<_ManagerState>(),
+  (ref) => GlobalKey<_ManagerState>(),
 );
 
 class LoadingProvider extends StatelessWidget {
@@ -24,12 +24,13 @@ class LoadingProvider extends StatelessWidget {
     );
   }
 
+  //ignore: library_private_types_in_public_api
   static _ManagerState of(WidgetRef ref) {
     final state = ref.read(_provider).currentState;
     assert(
-    state != null,
-    'Loading overlay is uninitialized. '
-        'Place LoadingProvider widget as high in widget tree as possible.',
+      state != null,
+      'Loading overlay is uninitialized. '
+      'Place LoadingProvider widget as high in widget tree as possible.',
     );
     return state!;
   }