diff --git a/MainWindow.axaml.cs b/MainWindow.axaml.cs
index 6b3996b..592de80 100644
--- a/MainWindow.axaml.cs
+++ b/MainWindow.axaml.cs
@@ -72,7 +72,7 @@ public partial class MainWindow : Window
 
     private async void Button_Click(object sender, Avalonia.Interactivity.RoutedEventArgs e)
     {
-        if (settings == null)
+        if (settings == null || string.IsNullOrEmpty(settings.HomeAssistantUrl) || string.IsNullOrEmpty(settings.WebhookId))
         {
             StatusText.Content = "Einstellungen fehlen!";
             StatusText.Foreground = new Avalonia.Media.SolidColorBrush(Avalonia.Media.Colors.Red);
@@ -98,7 +98,7 @@ public partial class MainWindow : Window
 
     private async Task GetState()
     {
-        if (settings == null)
+        if (settings == null || string.IsNullOrEmpty(settings.HomeAssistantUrl) || string.IsNullOrEmpty(settings.Entity) || string.IsNullOrEmpty(settings.AccessToken))
         {
             StatusText.Content = "Einstellungen fehlen!";
             StatusText.Foreground = new Avalonia.Media.SolidColorBrush(Avalonia.Media.Colors.Red);