Global Error Handler: System.AggregateException: One or more errors occurred. ---> System.Exception: Response status code does not indicate success: 500 (Internal Server Error) ---> Ekeeda.Core.Client.Http.HttpApiClientResponseException
   at Ekeeda.Core.Client.Http.HttpExtensions.EnsureSuccessStatusCodeAsync(HttpResponseMessage response) in C:\Projects\Ekeeda\Source Code\ekeeda-api\Ekeeda.Core.Client\Http\HttpExtensions.cs:line 50
   at Ekeeda.Core.Client.Http.HttpApiClient`1.<GetSingleItemRequestAsync>d__8.MoveNext() in C:\Projects\Ekeeda\Source Code\ekeeda-api\Ekeeda.Core.Client\Http\HttpApiClient.cs:line 272
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.ConfiguredTaskAwaitable`1.ConfiguredTaskAwaiter.GetResult()
   at Ekeeda.Core.Client.Http.ApiClient.<GetAsync>d__4`2.MoveNext() in C:\Projects\Ekeeda\Source Code\ekeeda-api\Ekeeda.Core.Client\Http\ApiClient.cs:line 57
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.ConfiguredTaskAwaitable`1.ConfiguredTaskAwaiter.GetResult()
   at Ekeeda.ContentLibrary.Client.Subject.SubjectApiClient.<>c__DisplayClass8_0.<<GetSubjectByCategory>b__0>d.MoveNext() in C:\Projects\Ekeeda\Source Code\ekeeda-api\Ekeeda.ContentLibrary.Client\Subject\SubjectApiClient.cs:line 119
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.ConfiguredTaskAwaitable`1.ConfiguredTaskAwaiter.GetResult()
   at Ekeeda.Core.Client.Base.BaseApiClient.<CommonCallWithReturnAsync>d__17`1.MoveNext() in C:\Projects\Ekeeda\Source Code\ekeeda-api\Ekeeda.Core.Client\Base\BaseApiClient.cs:line 184
   --- End of inner exception stack trace ---
   at Ekeeda.Core.Client.Base.BaseApiClient.<CallWithThrowOnFailAsync>d__15`1.MoveNext() in C:\Projects\Ekeeda\Source Code\ekeeda-api\Ekeeda.Core.Client\Base\BaseApiClient.cs:line 156
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.ConfiguredTaskAwaitable`1.ConfiguredTaskAwaiter.GetResult()
   at Ekeeda.ContentLibrary.Client.Subject.SubjectApiClient.<GetSubjectByCategory>d__8.MoveNext() in C:\Projects\Ekeeda\Source Code\ekeeda-api\Ekeeda.ContentLibrary.Client\Subject\SubjectApiClient.cs:line 117
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Ekeeda.Web.Repositories.ContentLibraryRepository.<GetSubjectListByCategory>d__5.MoveNext() in C:\Projects\Ekeeda\Source Code\ekeeda-web-new\Ekeeda.Web\Repositories\ContentLibraryRepository.cs:line 42
   --- End of inner exception stack trace ---
   at System.Threading.Tasks.Task`1.GetResultCore(Boolean waitCompletionNotification)
   at Ekeeda.Web.Controllers.ContentLibraryController.<Category>d__7.MoveNext() in C:\Projects\Ekeeda\Source Code\ekeeda-web-new\Ekeeda.Web\Controllers\ContentLibraryController.cs:line 83
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Web.Mvc.Async.TaskAsyncActionDescriptor.EndExecute(IAsyncResult asyncResult)
   at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass8_0.<BeginInvokeAsynchronousActionMethod>b__1(IAsyncResult asyncResult)
   at System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethod(IAsyncResult asyncResult)
   at System.Web.Mvc.Async.AsyncControllerActionInvoker.AsyncInvocationWithFilters.<>c__DisplayClass11_0.<InvokeActionMethodFilterAsynchronouslyRecursive>b__0()
   at System.Web.Mvc.Async.AsyncControllerActionInvoker.AsyncInvocationWithFilters.<>c__DisplayClass11_2.<InvokeActionMethodFilterAsynchronouslyRecursive>b__2()
   at System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethodWithFilters(IAsyncResult asyncResult)
   at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass3_6.<BeginInvokeAction>b__4()
   at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass3_1.<BeginInvokeAction>b__1(IAsyncResult asyncResult)
   at System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeAction(IAsyncResult asyncResult)
   at System.Web.Mvc.Controller.<>c.<BeginExecuteCore>b__152_1(IAsyncResult asyncResult, ExecuteCoreState innerState)
   at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult)
   at System.Web.Mvc.Controller.EndExecuteCore(IAsyncResult asyncResult)
   at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult)
   at System.Web.Mvc.Controller.EndExecute(IAsyncResult asyncResult)
   at System.Web.Mvc.MvcHandler.<>c.<BeginProcessRequest>b__20_1(IAsyncResult asyncResult, ProcessRequestState innerState)
   at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult)
   at System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult)
   at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
   at System.Web.HttpApplication.ExecuteStepImpl(IExecutionStep step)
   at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)
---> (Inner Exception #0) System.Exception: Response status code does not indicate success: 500 (Internal Server Error) ---> Ekeeda.Core.Client.Http.HttpApiClientResponseException
   at Ekeeda.Core.Client.Http.HttpExtensions.EnsureSuccessStatusCodeAsync(HttpResponseMessage response) in C:\Projects\Ekeeda\Source Code\ekeeda-api\Ekeeda.Core.Client\Http\HttpExtensions.cs:line 50
   at Ekeeda.Core.Client.Http.HttpApiClient`1.<GetSingleItemRequestAsync>d__8.MoveNext() in C:\Projects\Ekeeda\Source Code\ekeeda-api\Ekeeda.Core.Client\Http\HttpApiClient.cs:line 272
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.ConfiguredTaskAwaitable`1.ConfiguredTaskAwaiter.GetResult()
   at Ekeeda.Core.Client.Http.ApiClient.<GetAsync>d__4`2.MoveNext() in C:\Projects\Ekeeda\Source Code\ekeeda-api\Ekeeda.Core.Client\Http\ApiClient.cs:line 57
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.ConfiguredTaskAwaitable`1.ConfiguredTaskAwaiter.GetResult()
   at Ekeeda.ContentLibrary.Client.Subject.SubjectApiClient.<>c__DisplayClass8_0.<<GetSubjectByCategory>b__0>d.MoveNext() in C:\Projects\Ekeeda\Source Code\ekeeda-api\Ekeeda.ContentLibrary.Client\Subject\SubjectApiClient.cs:line 119
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.ConfiguredTaskAwaitable`1.ConfiguredTaskAwaiter.GetResult()
   at Ekeeda.Core.Client.Base.BaseApiClient.<CommonCallWithReturnAsync>d__17`1.MoveNext() in C:\Projects\Ekeeda\Source Code\ekeeda-api\Ekeeda.Core.Client\Base\BaseApiClient.cs:line 184
   --- End of inner exception stack trace ---
   at Ekeeda.Core.Client.Base.BaseApiClient.<CallWithThrowOnFailAsync>d__15`1.MoveNext() in C:\Projects\Ekeeda\Source Code\ekeeda-api\Ekeeda.Core.Client\Base\BaseApiClient.cs:line 156
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.ConfiguredTaskAwaitable`1.ConfiguredTaskAwaiter.GetResult()
   at Ekeeda.ContentLibrary.Client.Subject.SubjectApiClient.<GetSubjectByCategory>d__8.MoveNext() in C:\Projects\Ekeeda\Source Code\ekeeda-api\Ekeeda.ContentLibrary.Client\Subject\SubjectApiClient.cs:line 117
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Ekeeda.Web.Repositories.ContentLibraryRepository.<GetSubjectListByCategory>d__5.MoveNext() in C:\Projects\Ekeeda\Source Code\ekeeda-web-new\Ekeeda.Web\Repositories\ContentLibraryRepository.cs:line 42<---