diff --git a/QuestPDF.ReportSample/Tests.cs b/QuestPDF.ReportSample/Tests.cs
index e4b9bcd..8ee5432 100644
--- a/QuestPDF.ReportSample/Tests.cs
+++ b/QuestPDF.ReportSample/Tests.cs
@@ -25,7 +25,7 @@ namespace QuestPDF.ReportSample
         [Test] 
         public void GenerateAndShowPdf()
         {
-            Report.ShowInPreviewer(5000);
+            Report.ShowInPreviewer();
             
             //ImagePlaceholder.Solid = true;
             //
diff --git a/QuestPDF/Previewer/ApiRequests.cs b/QuestPDF/Previewer/ApiRequests.cs
index acbc040..3dda91c 100644
--- a/QuestPDF/Previewer/ApiRequests.cs
+++ b/QuestPDF/Previewer/ApiRequests.cs
@@ -11,7 +11,7 @@ internal sealed class IncompatibleVersionApiRequest
 
 internal sealed class NotifyPresenceApiRequest
 {
-    public string Id { get; set; }
+    public string ClientId { get; set; }
     public string LibraryVersion { get; set; }
     public bool IsDotnet6OrBeyond { get; set; }
     public bool IsDotnet3OrBeyond { get; set; }
diff --git a/QuestPDF/Previewer/PreviewerService.cs b/QuestPDF/Previewer/PreviewerService.cs
index 130f018..ceb5385 100644
--- a/QuestPDF/Previewer/PreviewerService.cs
+++ b/QuestPDF/Previewer/PreviewerService.cs
@@ -128,11 +128,12 @@ namespace QuestPDF.Previewer
         #endregion
         
         #region Checking compatibility
-        
+
         private async Task<Version> GetPreviewerVersion()
         {
             using var result = await HttpClient.GetAsync("/version");
-            return await result.Content.ReadFromJsonAsync<Version>();
+            var response = await result.Content.ReadFromJsonAsync<string>();
+            return Version.Parse(response);
         }
 
         private async Task CheckVersionCompatibility(Version version)
@@ -173,7 +174,7 @@ namespace QuestPDF.Previewer
         {
             var payload = new NotifyPresenceApiRequest
             {
-                Id = ClientId,
+                ClientId = ClientId,
                 LibraryVersion = LibraryVersion,
                 IsDotnet6OrBeyond = RuntimeDetector.IsNet6OrGreater,
                 IsDotnet3OrBeyond = RuntimeDetector.IsNet3OrGreater,
diff --git a/SimpleApp/SimpleApp.csproj b/SimpleApp/SimpleApp.csproj
index 388d62d..616bcc7 100644
--- a/SimpleApp/SimpleApp.csproj
+++ b/SimpleApp/SimpleApp.csproj
@@ -2,7 +2,7 @@
 
     <PropertyGroup>
         <OutputType>Exe</OutputType>
-        <TargetFramework>net6.0</TargetFramework>
+        <TargetFramework>net5.0</TargetFramework>
         <ImplicitUsings>enable</ImplicitUsings>
         <Nullable>enable</Nullable>
         <LangVersion>10</LangVersion>