diff --git a/lib/main.dart b/lib/main.dart
index a27560e1..275d67cd 100644
--- a/lib/main.dart
+++ b/lib/main.dart
@@ -45,6 +45,7 @@ import 'package:flutter/material.dart';
 import 'package:flutter_bloc/flutter_bloc.dart';
 import 'package:flutter_localizations/flutter_localizations.dart';
 import 'package:logging/logging.dart';
+import 'package:ox_coi/src/brandable/custom_theme.dart';
 import 'package:ox_coi/src/error/error_bloc.dart';
 import 'package:ox_coi/src/l10n/l10n.dart';
 import 'package:ox_coi/src/lifecycle/lifecycle_bloc.dart';
@@ -59,7 +60,6 @@ import 'package:ox_coi/src/main/splash.dart';
 import 'package:ox_coi/src/navigation/navigation.dart';
 import 'package:ox_coi/src/push/push_bloc.dart';
 import 'package:ox_coi/src/push/push_event_state.dart';
-import 'package:ox_coi/src/brandable/custom_theme.dart';
 import 'package:ox_coi/src/widgets/view_switcher.dart';
 
 void main() {
@@ -191,5 +191,4 @@ class _OxCoiState extends State<OxCoi> {
     _navigation.popUntilRoot(context);
     _mainBloc.add(AppLoaded());
   }
-
 }
diff --git a/lib/src/l10n/l.dart b/lib/src/l10n/l.dart
index 26f947e0..e439e1c9 100644
--- a/lib/src/l10n/l.dart
+++ b/lib/src/l10n/l.dart
@@ -340,6 +340,7 @@ class L {
   // Scan the QR code to add an verify user X (e.g. Scan this QR code to create a new contact or verify a contact with alice.)
   static final qrScanTextX = _translationKey("Scan this QR code to create a new contact or verify a contact with %s.");
   static final qrShow = _translationKey("Show QR");
+  static final qrShowErrorX = _translationKey("Not possible to create qr code: %s");
   static final qrCameraNotAllowed = _translationKey("Camera not ready");
   static final qrCameraNotAllowedText = _translationKey("No camera permission granted.");
   static final qrNoValidCode = _translationKey("No valid QR code");
diff --git a/lib/src/log/log_manager.dart b/lib/src/log/log_manager.dart
index 960200f9..80c7d8e5 100644
--- a/lib/src/log/log_manager.dart
+++ b/lib/src/log/log_manager.dart
@@ -76,7 +76,7 @@ class LogManager {
 
   get currentLogFile => _logFile;
 
-  void setup({@required bool logToFile, @required Level logLevel}) async {
+  Future<void> setup({@required bool logToFile, @required Level logLevel}) async {
     BlocSupervisor.delegate = LogBlocDelegate();
     if (logToFile) {
       _logFile = await _setupAndGetLogFile();
diff --git a/lib/src/notifications/local_notification_manager.dart b/lib/src/notifications/local_notification_manager.dart
index 3f696f38..42daa1aa 100644
--- a/lib/src/notifications/local_notification_manager.dart
+++ b/lib/src/notifications/local_notification_manager.dart
@@ -137,6 +137,7 @@ class LocalNotificationManager {
       int senderId = await invite.getFromId();
       if (!createdNotifications.contains(senderId)) {
         createdNotifications.add(senderId);
+        contactRepository.putIfAbsent(id: senderId);
         Contact contact = contactRepository.get(senderId);
         var contactName = await contact.getName();
         var contactMail = await contact.getAddress();
diff --git a/lib/src/platform/system_information.dart b/lib/src/platform/system_information.dart
index 32ef3545..85c3a50f 100644
--- a/lib/src/platform/system_information.dart
+++ b/lib/src/platform/system_information.dart
@@ -56,7 +56,7 @@ Future<String> getDeviceName() async {
 Future<String> getDeviceOsVersion() async {
   await getDeviceInfo();
   return Platform.isIOS
-      ? "OS: ${iosInfo.utsname.sysname} - Release: ${iosInfo.utsname.release} - Version: ${iosInfo.utsname.version}"
+      ? "OS: ${iosInfo.systemName} - Version: ${iosInfo.systemVersion} - Kernel: ${iosInfo.utsname.version}"
       : "OS: ${androidInfo.version.baseOS} - Release: ${androidInfo.version.release} (${androidInfo.version.codename}) - SDK: ${androidInfo.version.sdkInt}";
 }
 
diff --git a/lib/src/qr/show_qr.dart b/lib/src/qr/show_qr.dart
index 2e4b8d3a..92b7d38d 100644
--- a/lib/src/qr/show_qr.dart
+++ b/lib/src/qr/show_qr.dart
@@ -42,6 +42,7 @@
 
 import 'package:flutter/material.dart';
 import 'package:flutter_bloc/flutter_bloc.dart';
+import 'package:logging/logging.dart';
 import 'package:ox_coi/src/brandable/custom_theme.dart';
 import 'package:ox_coi/src/extensions/string_ui.dart';
 import 'package:ox_coi/src/l10n/l.dart';
@@ -65,10 +66,11 @@ class ShowQr extends StatefulWidget {
 }
 
 class _ShowQrState extends State<ShowQr> {
-  UserBloc _userBloc = UserBloc();
-  QrBloc _qrBloc = QrBloc();
+  final _logger = Logger("show_qr");
+  final UserBloc _userBloc = UserBloc();
+  final QrBloc _qrBloc = QrBloc();
+  final Navigation _navigation = Navigation();
   String _qrText;
-  Navigation _navigation = Navigation();
 
   @override
   void initState() {
@@ -140,7 +142,19 @@ class _ShowQrState extends State<ShowQr> {
       data: qrText,
       size: qrImageSize,
       backgroundColor: CustomTheme.of(context).white,
-      version: 6,
+      version: 8,
+      errorStateBuilder: (context, error) {
+        _logger.info(L10n.getFormatted(L.qrShowErrorX, [error]));
+        return Container(
+          child: Center(
+            child: Text(
+              L10n.getFormatted(L.qrShowErrorX, [error]),
+              style: Theme.of(context).textTheme.body2.apply(color: CustomTheme.of(context).error),
+              textAlign: TextAlign.center,
+            ),
+          ),
+        );
+      },
     );
   }
 }