Crash after choosing Configuration

Hello,
When I first started Hearthbuddy I entered my key and then choosed the default Configuration. But after this, I can't do anything except clicking away a error message

The log says this:

2015-02-26 15:05:24,240 [1] INFO Logger (null) - [BotManager] MsBetweenTicks = 15
2015-02-26 15:05:24,450 [1] INFO Logger (null) - Hearthbuddy [0.3.847.123] is up to date!
2015-02-26 15:05:24,595 [1] DEBUG Logger (null) - System.ServiceModel.CommunicationException: The socket connection was aborted. This could be caused by an error processing your message or a receive timeout being exceeded by the remote host, or an underlying network resource issue. Local socket timeout was '00:00:29.9539664'. ---> System.Net.Sockets.SocketException: Eine vorhandene Verbindung wurde vom Remotehost geschlossen
at System.Net.Sockets.Socket.Receive(Byte[] buffer, Int32 offset, Int32 size, SocketFlags socketFlags)
at System.ServiceModel.Channels.SocketConnection.ReadCore(Byte[] buffer, Int32 offset, Int32 size, TimeSpan timeout, Boolean closing)
--- End of inner exception stack trace ---

Server stack trace:
at System.ServiceModel.Channels.SocketConnection.ReadCore(Byte[] buffer, Int32 offset, Int32 size, TimeSpan timeout, Boolean closing)
at System.ServiceModel.Channels.SocketConnection.Read(Byte[] buffer, Int32 offset, Int32 size, TimeSpan timeout)
at System.ServiceModel.Channels.DelegatingConnection.Read(Byte[] buffer, Int32 offset, Int32 size, TimeSpan timeout)
at System.ServiceModel.Channels.ClientFramingDuplexSessionChannel.SendPreamble(IConnection connection, ArraySegment`1 preamble, TimeoutHelper& timeoutHelper)
at System.ServiceModel.Channels.ClientFramingDuplexSessionChannel.DuplexConnectionPoolHelper.AcceptPooledConnection(IConnection connection, TimeoutHelper& timeoutHelper)
at System.ServiceModel.Channels.ConnectionPoolHelper.EstablishConnection(TimeSpan timeout)
at System.ServiceModel.Channels.ClientFramingDuplexSessionChannel.OnOpen(TimeSpan timeout)
at System.ServiceModel.Channels.CommunicationObject.Open(TimeSpan timeout)
at System.ServiceModel.Channels.ServiceChannel.OnOpen(TimeSpan timeout)
at System.ServiceModel.Channels.CommunicationObject.Open(TimeSpan timeout)
at System.ServiceModel.Channels.ServiceChannel.CallOpenOnce.System.ServiceModel.Channels.ServiceChannel.ICallOnce.Call(ServiceChannel channel, TimeSpan timeout)
at System.ServiceModel.Channels.ServiceChannel.CallOnceManager.CallOnce(TimeSpan timeout, CallOnceManager cascade)
at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs, TimeSpan timeout)
at System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCallMessage methodCall, ProxyOperationRuntime operation)
at System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage message)

Exception rethrown at [0]:
at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)
at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)
at Buddy.Auth.SR.IA.Do(Byte b, Object[] args)
at ..Do(Byte , Object[] ?)
at ?..Do( , Object[] ?)
at ?..?(String , Byte , Int64 ?)
at .?.?.?( )
2015-02-26 15:05:24,752 [1] INFO Logger (null) - T: 5247291617673384585 H: 650053343
2015-02-26 15:05:24,899 [1] INFO Logger (null) - Hearthbuddy Version: 0.3.847.123
Path: C:\Users\<Username>\Desktop\Neuer Ordner\Hearthbuddy 0.3.847.123\Hearthbuddy.exe

OS Name: Windows 8
OS Edition:
OS Service Pack:
OS Version: 6.2.9200.0
OS Architecture: x64
.NET Runtime Version: 4.0.30319.34014

2015-02-26 15:05:26,875 [1] ERROR Logger (null) - Could not attach to a Hearthstone process. Please make sure an available Hearthstone process is running.



hope someone can help. Thanks !