Typ: System.InvalidOperationException

Nachricht: Sequence contains more than one element.

Aufrufliste:

   at Microsoft.EntityFrameworkCore.Query.ShapedQueryCompilingExpressionVisitor.SingleOrDefaultAsync[TSource](IAsyncEnumerable`1 asyncEnumerable, CancellationToken cancellationToken)
   at Microsoft.EntityFrameworkCore.Query.ShapedQueryCompilingExpressionVisitor.SingleOrDefaultAsync[TSource](IAsyncEnumerable`1 asyncEnumerable, CancellationToken cancellationToken)
   at Varuna.Persistence.Repositories.ContentRepository.GetContent(String pageName, Nullable`1 refresh) in /app/Varuna.Persistence/Repositories/ContentRepository.cs:line 100
   at Varuna.Homepage.App.Pages.Public.Content.OnParametersSetAsync() in /app/Varuna.Homepage.App/Pages/Public/Content.razor:line 166
   at Microsoft.AspNetCore.Components.ComponentBase.CallStateHasChangedOnAsyncCompletion(Task task)
   at Microsoft.AspNetCore.Components.ComponentBase.RunInitAndSetParametersAsync()
   at Microsoft.AspNetCore.Components.RenderTree.Renderer.GetErrorHandledTask(Task taskToHandle, ComponentState owningComponentState)