TIdThreadComponent Crash on android

On my application (i use DXE7), I use TIdTCPClient to receive messages from TIdTCPServer (VCL Application) when I put idthreadcomponent1.active:=true, the application works fine on windows, but it crashes on android(5.1.1)

Procedure TF_RestMain.SetConnectClientCmd();

begin

if RestCM.ServInfos.AcceptNotifServ then

BEGIN     WorkingLBL.Text:='Connecton ...';//Label  

with RestCM do   

Try if IdTCPClient1.Connected then   

        IdTCPClient1.Disconnect;    

       IdTCPClient1.Port:=ServInfos.ServPort+1;    

        IdTCPClient1.Host:=ServInfos.HostAddr;  

      IdTCPClient1.Connect;   

Except raise    End;

END;  

procedure TRestCM.IdTCPClient1Connected(Sender: TObject);

Begin //HERE CRASH WITHOUT ERROR MESSAGE

IdThreadComponent1.Active := true;

end;

procedure TRestCM.IdThreadComponent1Run(Sender: TIdThreadComponent);

var FMsg:string;

begin

FMsg:=  IdTCPClient1.IOHandler.ReadLn();

if FMsg[1]'%' then F_RestMain.AddNotification (FMsg);

end;