Looking at the logs you see the following errors:
Microsoft.Http.HttpStageProcessingException ---> System.Net.WebException ---> System.Net.WebException: Unable to connect to the remote server ---> System.Net.Sockets.SocketException: No connection could be made because the target machine actively refused it 192.168.1.100:8006
at System.Net.Sockets.Socket.DoConnect(EndPoint endPointSnapshot, SocketAddress socketAddress)
at System.Net.ServicePoint.ConnectSocketInternal(Boolean connectFailure, Socket s4, Socket s6, Socket& socket, IPAddress& address, ConnectSocketState state, IAsyncResult asyncResult, Exception& exception)
Replay.Core.Contracts.Replication.RemoteSlaveCoreNotFoundException depth 0: The remote slave core with the id 'c9e2335a-db33-4833-ae33-0cb27bd20c33' was not found. (0x80131500) ---> System.Collections.Generic.KeyNotFoundException depth 1: The given key was not present in the dictionary. (0x80131577)