How to fix JainHU?

#region JainHU
                case 15745:
                    {
                        switch (npcRequest.OptionID)
                        {
                            case 0:
                                {
                                    dialog.Text("Well, the Jiang Hu is quite chaotic. I`ll test your understanding with several questions. If you pass, you`re able to name a skill of your own and start your adventure as a Jiang Hu warrior");
                                    dialog.Option("Okay.I`m ready", 1);
                                    dialog.Option("Just Passing By.", 255);
                                    dialog.Send();
                                    break;
                                }

                            case 1:
                                {
                                    if (!client.Entity.KunFuClasses.MainGui.ContainsKey(client.Entity.UID))
                                    {
                                        client.Send(new Data(true) { UID = client.Entity.UID, ID = Data.JiangHu, dwParam = 617, wParam1 = client.Entity.X, wParam2 = client.Entity.Y });
                                        //  client.Entity.KunFuClasses.MainGui.Add(client.Entity.UID,);
                                    }
                                    else
                                    {
                                        dialog.Text("you are already a Jiang Hu warrior");
                                        // dialog.Link("Okay.I`m ready", 1);
                                        dialog.Option("Thank You.", 255);
                                        dialog.Send();
                                        break;
                                    }

                                    break;
                                }

                        }
                        break;
                    }
                #endregion