Akka with Xamarin Error "Configuration system failed initialize"

[Zabato7]

I am trying to create an actor, through the actor system of the akka library, but I receive the error “Configuration system failed initialize” just when trying to create the actor system.

     private static readonly ActorSystem _system;

     public static readonly IActorRef _coordinator;
   
     static CrawlingSystem ()
     {
         _system = ActorSystem.Create ("crawling-system");
         _coordinator = _system.ActorOf (Props.Create <BackupActor> (), "backupactor");
     } 

The static CreawlingSystem class is called directly by MainPage.Xaml.cs
I am using visual Studio 2019, an empty Xamarin.Forms project, akka 1.4.21, Xamarin.Forms 5.0.0.2012.
Also i tried with versions: akka 1.3.9, Xamarin.Forms 3.3.0912540, but the error persists.

[Aaronontheweb]

This must be a System,Configuration error - legacy .NET Framework infrastruture.

@Arkatufus which version of the .NET runtime does Xamarin.Forms 5.0.0.2012 translate to? Is that a Mono or a .NET Core target?