diff --git a/Pages/Components/ParticipantSignInPlaceComponent.razor b/Pages/Components/ParticipantSignInPlaceComponent.razor
index 4be86f2..925f9f6 100644
--- a/Pages/Components/ParticipantSignInPlaceComponent.razor
+++ b/Pages/Components/ParticipantSignInPlaceComponent.razor
@@ -9,7 +9,7 @@
                 @if (SignInPlace.Participant != null)
                 {
                     <div class="flex-shrink-0">
-                        <img class="card-img" src="@SignInPlace.Participant.User.Avatar" alt="@SignInPlace.Participant.User.Steamname" width="56" height="56">
+                        <img class="card-img" src="@SignInPlace.Participant.User.Avatar" alt="@SignInPlace.Participant.User.Steamname" width="64" height="64" >
                     </div>
                     <div class="flex-grow-1 overflow-hidden text-start m-2">
                         <p class="m-0 text-nobreak text-nowrap text-truncate">@SignInPlace.Participant.User.Firstname @SignInPlace.Participant.User.Surname</p>
@@ -32,6 +32,7 @@
                 {
                     <div class="flex-grow-1 overflow-hidden text-start m-2">
                         <p class="m-0 text-nobreak text-nowrap text-truncate">Nicht belegt</p>
+                        <p class="m-0 text-muted text-nobreak text-nowrap text-truncate">&nbsp;</p>
                     </div>
                 }
             </div>
@@ -51,7 +52,6 @@
                 </div>
             </div>
 
-
             <div class="row">
                 <div class="col mb-3">
                     <input type="checkbox" class="btn-check" id="btn-check-paid-@SignInPlace.Id" @bind="IsPaid" disabled="@IsPaidDisabled">
diff --git a/Program.cs b/Program.cs
index dd3c861..580d815 100644
--- a/Program.cs
+++ b/Program.cs
@@ -27,7 +27,7 @@
 
 builder.Services.AddHttpClient(nameof(EventulaApiService), client =>
 {
-    client.BaseAddress = new System.Uri("https://lan2play.de");
+    client.BaseAddress = new System.Uri(builder.Configuration.GetValue<string>("EventulaApiBaseAddress"));
 }).ConfigurePrimaryHttpMessageHandler(sp =>
 {
     var cookieContainer = sp.GetRequiredService<CookieContainer>();
diff --git a/Services/EventulaApiService.cs b/Services/EventulaApiService.cs
index 2c5cc6b..f341ee8 100644
--- a/Services/EventulaApiService.cs
+++ b/Services/EventulaApiService.cs
@@ -1,12 +1,7 @@
 using EventulaEntranceClient.Models;
-using Microsoft.Extensions.Logging;
-using System;
-using System.Linq;
 using System.Net;
-using System.Net.Http;
 using System.Net.Http.Headers;
 using System.Text.Json;
-using System.Threading.Tasks;
 
 namespace EventulaEntranceClient.Services
 {
@@ -42,7 +37,9 @@ public async Task<TicketRequest> RequestTicket(string qrCode)
             SetDefaultHeaders(httpClient, await _EventulaTokenService.RetrieveTokenAsync());
 
             var getResult = await httpClient.GetAsync(string.Format(_UserApiParticipantUrl, qrCode.Split('/').Last()));
-                   
+                 
+            getResult.EnsureSuccessStatusCode();
+
             var content = await getResult.Content.ReadAsStringAsync();
 
             var ticketRequest = JsonSerializer.Deserialize<TicketRequest>(content, new JsonSerializerOptions { PropertyNameCaseInsensitive = true });
@@ -59,6 +56,9 @@ public async Task<TicketRequest> SignInParticipant(Participant participant)
             SetDefaultHeaders(httpClient, await _EventulaTokenService.RetrieveTokenAsync());
 
             var getResult = await httpClient.GetAsync(string.Format(_UserApiParticipantSignInUrl, participant.Id));
+
+            getResult.EnsureSuccessStatusCode();
+
             var content = await getResult.Content.ReadAsStringAsync();
 
             var ticketRequest = JsonSerializer.Deserialize<TicketRequest>(content, new JsonSerializerOptions { PropertyNameCaseInsensitive = true });
diff --git a/appsettings.json b/appsettings.json
index 9717ad1..ea69982 100644
--- a/appsettings.json
+++ b/appsettings.json
@@ -6,5 +6,6 @@
     }
   },
   "AllowedHosts": "*",
-  "PinSha256": "c50281c3dd92d836d2ba7702fad19f778404cddd49059afc7b2e6e537f436ea7"
+  "PinSha256": "c50281c3dd92d836d2ba7702fad19f778404cddd49059afc7b2e6e537f436ea7",
+  "EventulaApiBaseAddress": "https://lan2play.de"
 }