@Dan_Woolf Sounds good, thanks for the response.

After Upgrading from version 5.3.27 to Proget 2022.6 I noticed that in Event Viewer on our Proget Server I am seeing this error output with the source being .NET Runtime

Category: Microsoft.AspNetCore.Server.IIS.Core.IISHttpServer
EventId: 2
SpanId: d6542f2f0ddee4b5
TraceId: 5209a8d0edc029b1608257cd9b0a499f
ParentId: 0000000000000011
RequestId: 8000009a-0000-fa00-b65f-84610c7967bb
RequestPath: /

Connection ID "18014398511084596889", Request ID "8000009a-0000-fa00-b65f-84610c7967bb": An unhandled exception was thrown by the application.

Exception: 
System.UriFormatException: Invalid URI: The hostname could not be parsed.
   at System.Uri.CreateThis(String uri, Boolean dontEscape, UriKind uriKind, UriCreationOptions& creationOptions)
   at System.Uri..ctor(String uriString)
   at System.Web.HttpRequest.<.ctor>b__6_0()
   at System.Lazy`1.ViaFactory(LazyThreadSafetyMode mode)
--- End of stack trace from previous location ---
   at System.Lazy`1.CreateValue()
   at Inedo.ProGet.WebApplication.ProGetHttpModule.LogHttpException(MessageLevel level, HttpApplication app, Exception ex)
   at Inedo.ProGet.WebApplication.ProGetHttpModule.ErrorAsync(HttpApplication app)
   at Inedo.Web.AhWebMiddleware.InvokeAsync(HttpContext context)
   at Inedo.Web.AhWebMiddleware.InvokeAsync(HttpContext context)
   at Inedo.Web.AhWebHost.<>c.<<Configure>b__13_0>d.MoveNext()
--- End of stack trace from previous location ---
   at Microsoft.AspNetCore.Server.IIS.Core.IISHttpContextOfT`1.ProcessRequestAsync()

As an attempt to fix I installed .NET 6 on the server but still seeing error. Our Proget Server is on Windows Server 2012 so Not sure if this is causing an issue or not?
Our proget site is still up and running so wondering what exactly is causing this issue?

Thanks