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md52ce486a14f4bcd95899665e9d932190b.JavaProxyThrowable: System.InvalidOperationException: Data cannot be sent because the connection is in the disconnected state. Call start before sending any data.
  at Microsoft.AspNet.SignalR.Client.Connection.Send (System.String data) [0x0001e] in <filename unknown>:0 
  at Microsoft.AspNet.SignalR.Client.Hubs.HubProxy.Invoke[TResult,TProgress] (System.String method, System.Action`1 onProgress, System.Object[] args) [0x000e1] in <filename unknown>:0 
  at Microsoft.AspNet.SignalR.Client.Hubs.HubProxy.Invoke[T] (System.String method, System.Object[] args) [0x00000] in <filename unknown>:0 
  at Microsoft.AspNet.SignalR.Client.Hubs.HubProxy.Invoke (System.String method, System.Object[] args) [0x00000] in <filename unknown>:0 
  at Yourtime.SignalRClientHelper+<InvokeSendMessage>d__11.MoveNext () [0x0000d] in <filename unknown>:0 
--- End of stack trace from previous location where exception was thrown ---
  at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () [0x0000c] in <filename unknown>:0 
  at System.Runtime.CompilerServices.AsyncMethodBuilderCore.<ThrowAsync>m__0 (System.Object state) [0x00000] in <filename unknown>:0 
  at Android.App.SyncContext+<Post>c__AnonStorey0.<>m__0 () [0x00000] in <filename unknown>:0 
  at Java.Lang.Thread+RunnableImplementor.Run () [0x0000b] in <filename unknown>:0 
  at Java.Lang.IRunnableInvoker.n_Run (IntPtr jnienv, IntPtr native__this) [0x00009] in <filename unknown>:0 
  at (wrapper dynamic-method) System.Object:44f67f43-349f-4a1b-8234-1604bc812b68 (intptr,intptr)	at mono.java.lang.RunnableImplementor.n_run(Native Method)	at mono.java.lang.RunnableImplementor.run(RunnableImplementor.java:29)	at android.os.Handler.handleCallback(Handler.java:605)	at android.os.Handler.dispatchMessage(Handler.java:92)	at android.os.Looper.loop(Looper.java:137)	at android.app.ActivityThread.main(ActivityThread.java:4511)