diff --git a/src/components/BJ_Casino_Bot.vue b/src/components/BJ_Casino_Bot.vue
index fda0f2f..cef7a09 100644
--- a/src/components/BJ_Casino_Bot.vue
+++ b/src/components/BJ_Casino_Bot.vue
@@ -1,40 +1,38 @@
 <script setup lang="ts">
 import { BJ_Casino_Bot } from "../script/BJ_Casino_Bot";
+import { BJ_Casino_BotController } from "../script/BJ_Casino_BotController";
 import BJ_Casino_Bot_Info from './BJ_Casino_Bot_Info.vue';
 import BJ_Casino_Bot_Lobby from './BJ_Casino_Bot_Lobby.vue';
 import BJ_Casino_Bot_Login from "./BJ_Casino_Bot_Login.vue";
 import BJ_Casino_Bot_Slot from './BJ_Casino_Bot_Slot.vue';
 
-const props = defineProps<{ BJ_Casino: any }>()
+const props = defineProps<{ BJ_Casino_BotController: BJ_Casino_BotController }>()
 
-const self = {
-    BJ_Casino: props.BJ_Casino,
-}
-const Script = new BJ_Casino_Bot(self);
-const disabled = false;
+const Script = new BJ_Casino_Bot();
+Script.BotController = props.BJ_Casino_BotController;
 </script>
 
 <template>
-    <!-- Info -->
+    <!-- Login -->
     <div class="BJ_Casino_Bot" style="float: left;text-align: left;width:10%;" v-show="!Script.IsLogin.value">
-        <BJ_Casino_Bot_Login :Client="self" :Script="Script" />
+        <BJ_Casino_Bot_Login :Script="Script" />
     </div>
 
     <!-- Info -->
     <div class="BJ_Casino_Bot" style="float: left;text-align: left;width:10%;" v-show="Script.IsLogin.value">
-        <BJ_Casino_Bot_Info :Client="self" :Script="Script" />
+        <BJ_Casino_Bot_Info :Script="Script" />
     </div>
 
     <!-- Game -->
     <div class="BJ_Casino_Bot" style="float: left;text-align: left;width:40%;">
         <!-- Lobby -->
         <div style="float: left;width:40%;" v-show="Script.LobbyShow.value">
-            <BJ_Casino_Bot_Lobby :Client="self" :Script="Script" />
+            <BJ_Casino_Bot_Lobby :Script="Script" />
         </div>
 
         <!-- Slot -->
         <div v-show="Script.SlotShow.value">
-            <BJ_Casino_Bot_Slot :Client="self" :Script="Script" />
+            <BJ_Casino_Bot_Slot :Script="Script" />
         </div>
     </div>
 
diff --git a/src/components/BJ_Casino_BotController.vue b/src/components/BJ_Casino_BotController.vue
index 9f6e723..cdbf66b 100644
--- a/src/components/BJ_Casino_BotController.vue
+++ b/src/components/BJ_Casino_BotController.vue
@@ -1,22 +1,20 @@
 <script setup lang="ts">
-import { ref } from "vue";
 import { BJ_Casino_BotController } from "../script/BJ_Casino_BotController";
 import BJ_Casino_Bot from './BJ_Casino_Bot.vue';
 
-let Title = ref("");
-const self = {
-    Title: Title,
-}
-const aaa = null;
-const Script = new BJ_Casino_BotController(self);
+const Script = new BJ_Casino_BotController();
 
 </script>
 
 <template>
     <div class="BJ_Casino_BotController">
-        <BJ_Casino_Bot :BJ_Casino="aaa" />
+        hostport:
+        <el-select v-model="Script.ServerDefault.value" filterable
+            @change="(data: any) => { Script.SelectServer(data) }">
+            <el-option v-for="(item, index) in Script.Hostport" :key="item" :label="item" :value="index" />
+        </el-select>
+    </div>
+    <div class="BJ_Casino_BotController">
+        <BJ_Casino_Bot :BJ_Casino_BotController="Script" />
     </div>
-    <!-- <div class="BJ_Casino_BotController">
-        <BJ_Casino_Bot :BJ_Casino="aaa" />
-    </div> -->
 </template>
\ No newline at end of file
diff --git a/src/components/BJ_Casino_Bot_Info.vue b/src/components/BJ_Casino_Bot_Info.vue
index 858ad45..4456762 100644
--- a/src/components/BJ_Casino_Bot_Info.vue
+++ b/src/components/BJ_Casino_Bot_Info.vue
@@ -1,7 +1,7 @@
 <script setup lang="ts">import { BJ_Casino_Bot } from '../script/BJ_Casino_Bot';
 
 
-const props = defineProps<{ Client: any, Script: BJ_Casino_Bot }>()
+const props = defineProps<{ Script: BJ_Casino_Bot }>()
 </script>
 
 <template>
diff --git a/src/components/BJ_Casino_Bot_Lobby.vue b/src/components/BJ_Casino_Bot_Lobby.vue
index 9566083..928a348 100644
--- a/src/components/BJ_Casino_Bot_Lobby.vue
+++ b/src/components/BJ_Casino_Bot_Lobby.vue
@@ -2,7 +2,7 @@
 import { BJ_Casino_Bot_Lobby } from '../script/BJ_Casino_Bot_Lobby';
 
 
-const props = defineProps<{ Client: any, Script: BJ_Casino_Bot }>()
+const props = defineProps<{ Script: BJ_Casino_Bot }>()
 const LobbyScript = new BJ_Casino_Bot_Lobby(props.Script);
 props.Script.LobbyScript = LobbyScript;
 </script>
@@ -13,7 +13,7 @@ props.Script.LobbyScript = LobbyScript;
         <el-select v-model="LobbyScript.LobbyDefault.value" filterable
             @change="(data: any) => { LobbyScript.SelectLobby(data) }">
             <el-option v-for="(item, index) in LobbyScript.GetLobby()" :key="item.value" :label="item.label"
-                :value="item.value" />
+                :value="item.value + 1" />
         </el-select>
     </div>
     <div>
diff --git a/src/components/BJ_Casino_Bot_Login.vue b/src/components/BJ_Casino_Bot_Login.vue
index b75109f..517b9be 100644
--- a/src/components/BJ_Casino_Bot_Login.vue
+++ b/src/components/BJ_Casino_Bot_Login.vue
@@ -3,7 +3,7 @@ import { BJ_Casino_Bot } from '../script/BJ_Casino_Bot';
 import { BJ_Casino_Bot_Login } from '../script/BJ_Casino_Bot_Login';
 
 
-const props = defineProps<{ Client: any, Script: BJ_Casino_Bot }>()
+const props = defineProps<{ Script: BJ_Casino_Bot }>()
 const LoginScript = new BJ_Casino_Bot_Login(props.Script);
 props.Script.LoginScript = LoginScript;
 </script>
diff --git a/src/components/BJ_Casino_Bot_Slot.vue b/src/components/BJ_Casino_Bot_Slot.vue
index 85f681f..00521d0 100644
--- a/src/components/BJ_Casino_Bot_Slot.vue
+++ b/src/components/BJ_Casino_Bot_Slot.vue
@@ -3,7 +3,7 @@ import { BJ_Casino_Bot } from '../script/BJ_Casino_Bot';
 import { BJ_Casino_Bot_Slot } from '../script/BJ_Casino_Bot_Slot';
 
 
-const props = defineProps<{ Client: any, Script: BJ_Casino_Bot }>()
+const props = defineProps<{ Script: BJ_Casino_Bot }>()
 const SlotScript = new BJ_Casino_Bot_Slot(props.Script);
 props.Script.SlotScript = SlotScript;
 </script>
@@ -11,7 +11,7 @@ props.Script.SlotScript = SlotScript;
 <template>
     <div>
         押注:
-        <el-select v-model="SlotScript.BetDefault.value" filterable
+        <el-select v-model="SlotScript.BetIndex.value" filterable
             @change="(data: any) => { SlotScript.SelectBet(data) }">
             <el-option v-for="(item, index) in SlotScript.BetGroup" :key="item" :label="item" :value="index" />
         </el-select>
diff --git a/src/script/BJ_Casino_Bot.ts b/src/script/BJ_Casino_Bot.ts
index fd6612f..2128383 100644
--- a/src/script/BJ_Casino_Bot.ts
+++ b/src/script/BJ_Casino_Bot.ts
@@ -2,6 +2,7 @@ import dayjs from "dayjs";
 import { Ref, ref } from "vue";
 import CSMessage from "./Base/CSMessage";
 import { AccountLoginRequest, CustomLoginRequest } from "./Base/Request/AccountRequest";
+import { BJ_Casino_BotController } from "./BJ_Casino_BotController";
 import { BJ_Casino_Bot_Lobby } from "./BJ_Casino_Bot_Lobby";
 import { BJ_Casino_Bot_Login } from "./BJ_Casino_Bot_Login";
 import { BJ_Casino_Bot_Slot } from "./BJ_Casino_Bot_Slot";
@@ -16,6 +17,8 @@ export class BJ_Casino_Bot {
 
     public UserData: BJ_Casino_UserData = null;
 
+    public BotController: BJ_Casino_BotController = null;
+
     public LoginScript: BJ_Casino_Bot_Login = null;
 
     public LobbyScript: BJ_Casino_Bot_Lobby = null;
@@ -45,8 +48,6 @@ export class BJ_Casino_Bot {
 
     //#region private
 
-    private _client: any;
-
     private _conn: NetConnector = null;
 
     //#endregion
@@ -56,8 +57,7 @@ export class BJ_Casino_Bot {
     /**
      *
      */
-    constructor(client: any) {
-        this._client = client;
+    constructor() {
         this.onLoad();
     }
 
@@ -71,15 +71,16 @@ export class BJ_Casino_Bot {
 
     public async Login(a: string, p: string): Promise<void> {
         let self: this = this;
+        this.IsLogin.value = true;
         // const URL: string = "https://game.online-bj.com";
         // const Port: string = "9005";
-        const URL: string = "http://220.134.195.1";
-        const Port: string = "19005";
+        // const URL: string = "http://220.134.195.1";
+        // const Port: string = "19005";
+        const { host: URL, port: Port } = this.BotController.GetServer();
         await this.ConnectAsync(URL, +Port);
         // 取得帳號資料
         let resp: any = await this._accountLogin(a, p);
         await this._getAccountInfo(resp.a, resp.pw);
-        this.IsLogin.value = true;
         this.LobbyShow.value = true;
         this.SetUI();
     }
@@ -87,7 +88,13 @@ export class BJ_Casino_Bot {
     public async Logout(): Promise<void> {
         NetManager.Disconnect();
         this.IsLogin.value = false;
+
         this.LobbyShow.value = false;
+        this.LobbyScript.IsSlotIn.value = false;
+
+        this.SlotShow.value = false;
+        this.SlotScript.IsSpin.value = false;
+        this.SlotScript.IsRun = false;
     }
 
     private async _accountLogin(account: string, password: string): Promise<any> {
@@ -95,6 +102,7 @@ export class BJ_Casino_Bot {
         await req.SendAsync(true);
         let resp: INetResponse<any> = req.Result;
         if (!resp.IsValid) {
+            this.IsLogin.value = false;
             CSMessage.NetError(resp.Method, resp.Status, "Registe Account Error!");
             return;
         }
@@ -107,6 +115,7 @@ export class BJ_Casino_Bot {
         await req.SendAsync(true);
         let resp: INetResponse<any> = req.Result;
         if (!resp.IsValid) {
+            this.IsLogin.value = false
             CSMessage.NetError(resp.Method, resp.Status, "Login Account Error!");
             return;
         }
@@ -121,14 +130,18 @@ export class BJ_Casino_Bot {
         this.Exp.value = this.UserData.Exp;
     }
 
-    public AddLog(log: string): void {
+    public AddLog(log: string, ...args: any[]): void {
         let AIDLog: string = ``;
         if (this.UserData?.AID) {
             AIDLog = `AID: ${this.UserData.AID} `;
         }
-        console.log(`${AIDLog}${log}`);
+        console.log(`${AIDLog}${log}`, ...args);
         let time: string = dayjs().format("YYYY/MM/DD HH:mm:ss.SSS");
-        this.Log.value += `${time} ${log}\n`;
+        if (args.length > 0) {
+            this.Log.value += `${time} ${log}, ${args}\n`;
+        } else {
+            this.Log.value += `${time} ${log}\n`;
+        }
         const textarea: HTMLElement | null = document.getElementById("DIV_LOG");
         if (textarea) {
             textarea.scrollTop = textarea.scrollHeight;
diff --git a/src/script/BJ_Casino_BotController.ts b/src/script/BJ_Casino_BotController.ts
index dfb1d35..9944d95 100644
--- a/src/script/BJ_Casino_BotController.ts
+++ b/src/script/BJ_Casino_BotController.ts
@@ -1,16 +1,22 @@
 // import { BJ_Casino_Data } from "./BJ_Casino_Data";
 import dayjs from "dayjs";
+import { Ref, ref } from "vue";
 
 export class BJ_Casino_BotController {
     //#region Lifecycle
 
-    // public BJ_Casino: BJ_Casino_Data | undefined;
+    public Hostport: any[] = ["不選擇環境", "內版", "肉乾", "賴宏", "40", "送審", "外版", "testing1", "testing2", "testing3"];
+
+    public ServerIndedx: number = 6;
+
+    public ServerDefault: Ref<string> = ref(this.Hostport[this.ServerIndedx]);
 
     //#endregion
 
-    //#region private
+    //#region get set
 
-    private _client: any;
+    // public get Host(): string { return this.Host; }
+    // public get Port(): string { return this.Port; }
 
     //#endregion
 
@@ -19,8 +25,7 @@ export class BJ_Casino_BotController {
     /**
      *
      */
-    constructor(client: any) {
-        this._client = client;
+    constructor() {
         import("dayjs/locale/zh-tw");
         dayjs.locale("zh-tw");
         // this.BJ_Casino = client.BJ_Casino;
@@ -43,9 +48,84 @@ export class BJ_Casino_BotController {
 
     //#region Custom
 
-    // public SendData() {
-    //     this._client.RankData.value = this.BJ_Casino?.RankWinMoneyData;
-    // }
+    public GetServer(): any {
+        let resp: Object = {};
+        switch (this.ServerIndedx) {
+            // 不選擇環境
+            case 0:
+            // 外網連內版
+            case 1: {
+                resp["host"] = "http://220.134.195.1";
+                resp["port"] = "19005";
+                break;
+            }
+
+            // 肉乾
+            case 2: {
+                resp["host"] = "http://192.168.5.230";
+                resp["port"] = "9006";
+                break;
+            }
+
+            // 賴宏
+            case 3: {
+                resp["host"] = "http://192.168.5.134";
+                resp["port"] = "9005";
+                break;
+            }
+
+            // 40
+            case 4: {
+                resp["host"] = "http://192.168.5.12";
+                resp["port"] = "9487";
+                break;
+            }
+
+            // 送審
+            case 5: {
+                resp["host"] = "https://submit.online-bj.com";
+                resp["port"] = "9005";
+                break;
+            }
+
+            // 外版
+            case 6: {
+                resp["host"] = "https://game.online-bj.com";
+                resp["port"] = "9005";
+                break;
+            }
+
+            // testing1
+            case 7: {
+                resp["host"] = "http://bj-testing1.casino.catan.com.tw";
+                resp["port"] = "9005";
+                break;
+            }
+
+            // testing2
+            case 8: {
+                resp["host"] = "http://bj-testing2.casino.catan.com.tw";
+                resp["port"] = "9005";
+                break;
+            }
+
+            // testing3
+            case 9: {
+                resp["host"] = "http://bj-testing3.casino.catan.com.tw";
+                resp["port"] = "9005";
+                break;
+            }
+
+            default: {
+                break;
+            }
+        }
+        return resp;
+    }
+
+    public SelectServer(data: number): void {
+        this.ServerIndedx = data;
+    }
 
     //#endregion
 }
diff --git a/src/script/BJ_Casino_Bot_Lobby.ts b/src/script/BJ_Casino_Bot_Lobby.ts
index d143c6e..16ce2a8 100644
--- a/src/script/BJ_Casino_Bot_Lobby.ts
+++ b/src/script/BJ_Casino_Bot_Lobby.ts
@@ -9,8 +9,7 @@ import { Tools } from "./Tools";
 export class BJ_Casino_Bot_Lobby {
     //#region public
 
-    public LobbyCongig: any[] = [2, [
-        "不選擇資源路徑",
+    public LobbyCongig: any[] = [1, [
         "體驗聽",
         "一般聽",
         "高手聽",
@@ -18,11 +17,11 @@ export class BJ_Casino_Bot_Lobby {
     ]];
 
     public LobbyShow: Ref<boolean> = ref(false);
-    public Lobby: Ref<number> = ref(0);
+    public Lobby: Ref<number> = ref(1);
+    public LobbyDefault: Ref<string> = ref(this.LobbyCongig[1][this.Lobby.value]);
     public InputSlot: Ref<string> = ref("");
     public Slot: number;
     public Table: Ref<number> = ref(0);
-    public LobbyDefault: Ref<string> = ref("");
 
     public IsSlotIn: Ref<boolean> = ref(false);
 
@@ -45,8 +44,7 @@ export class BJ_Casino_Bot_Lobby {
     }
 
     public async onLoad(): Promise<void> {
-        this.Lobby.value = this.LobbyCongig[0];
-        this.LobbyDefault.value = this.LobbyCongig[1][this.Lobby.value];
+        //
     }
 
     //#endregion
@@ -76,9 +74,10 @@ export class BJ_Casino_Bot_Lobby {
     //#region Onclick
 
     public async OnclickSlotIn(hall: number, slot: number): Promise<void> {
-        if (this.IsSlotIn.value) {
+        if (this.IsSlotIn.value || slot === 0 || slot == null) {
             return;
         }
+        hall += 1;
         this.IsSlotIn.value = true;
         let table: number = 1;
         let req: SeatListRequest = new SeatListRequest(hall, slot);
@@ -93,16 +92,20 @@ export class BJ_Casino_Bot_Lobby {
             const element: any = data[i];
             if (element[0].length > 0) {
                 let aid: string = element[0][0];
-                if (aid === this._bj_Casino_Bot.UserData.AID) {
-                    table = i + 1;
-                    break;
-                } else {
+                if (+aid === +this._bj_Casino_Bot.UserData.AID) {
                     table = i + 1;
                     break;
                 }
+            } else {
+                table = i + 1;
+                break;
             }
         }
         let resp_slotIn: any = await this._slotIn(hall, slot, table);
+        if (!resp_slotIn.IsValid) {
+            this.IsSlotIn.value = false;
+            return;
+        }
         this.Slot = slot;
         this.Table.value = table;
         this._bj_Casino_Bot.SlotScript.GameIn(resp_slotIn);
@@ -119,7 +122,7 @@ export class BJ_Casino_Bot_Lobby {
             await Tools.Sleep(0.5);
         }
         await this._slotOut();
-        this.Slot = null!;
+        this.Slot = null;
         this.Table.value = 0;
         this._bj_Casino_Bot.SlotShow.value = false;
     }
@@ -137,8 +140,7 @@ export class BJ_Casino_Bot_Lobby {
         await req.SendAsync(true);
         let resp: INetResponse<JSON> = req.Result;
         if (resp.IsValid) {
-            this._bj_Casino_Bot.AddLog(`進機台成功 slot: ${slot}, hall: ${hall}, table: ${uid}`);
-            return resp;
+            this._bj_Casino_Bot.AddLog(`進機台成功 slot: ${slot}, hall: ${this.LobbyDefault.value}, table: ${uid}`);
         } else {
             switch (resp.Status) {
                 case 11:
@@ -150,8 +152,10 @@ export class BJ_Casino_Bot_Lobby {
                 default:
                     break;
             }
+            this._bj_Casino_Bot.AddLog(resp.Method, resp.Status, "進遊戲失敗");
             CSMessage.NetError(resp.Method, resp.Status, "進遊戲失敗");
         }
+        return resp;
     }
 
     private async _slotOut(): Promise<any> {
diff --git a/src/script/BJ_Casino_Bot_Slot.ts b/src/script/BJ_Casino_Bot_Slot.ts
index fe87b83..8354a43 100644
--- a/src/script/BJ_Casino_Bot_Slot.ts
+++ b/src/script/BJ_Casino_Bot_Slot.ts
@@ -6,17 +6,17 @@ import { Tools } from "./Tools";
 export class BJ_Casino_Bot_Slot {
     //#region public
 
-    public BetDefault: Ref<string> = ref("");
+    public BetIndex: Ref<string> = ref("");
 
     public SpinDelay: Ref<number> = ref(1);
 
-    public Slot: SlotBase = null!;
+    public Slot: SlotBase = null;
 
-    public GameInData: any = null!;
+    public GameInData: any = null;
 
     public BetGroup: number[] = [];
 
-    public NowBetIndex: number = null!;
+    public NowBetIndex: number = null;
 
     public IsSpin: Ref<boolean> = ref(false);
 
@@ -32,7 +32,7 @@ export class BJ_Casino_Bot_Slot {
 
     //#region get set
 
-    public get NowBet(): number { return this.BetGroup[this.NowBetIndex]; }
+    public get NowBet(): number { return +this.BetGroup[this.NowBetIndex]; }
 
     //#endregion
 
@@ -55,7 +55,7 @@ export class BJ_Casino_Bot_Slot {
         let Data: any = gameInData.Data;
         this.BetGroup = Data.br;
         this.NowBetIndex = Data.db;
-        this.BetDefault.value = this.BetGroup[Data.db].toString();
+        this.BetIndex.value = this.BetGroup[Data.db].toString();
     }
 
     //#endregion
@@ -63,6 +63,10 @@ export class BJ_Casino_Bot_Slot {
     //#region Custom
 
     public async Spin(): Promise<void> {
+        if (this._bj_Casino_Bot.UserData.Money < this.NowBet) {
+            this.NoMoney();
+            return;
+        }
         this.IsRun = true;
         await this.Slot.Spin();
         await Tools.Sleep(this.SpinDelay.value * 1000);
@@ -78,6 +82,12 @@ export class BJ_Casino_Bot_Slot {
         this._bj_Casino_Bot.AddLog(`改變Bet: ${this.NowBet}`);
     }
 
+    public NoMoney(): void {
+        this.IsSpin.value = false;
+        this.IsRun = false;
+        this._bj_Casino_Bot.AddLog(`金額不足: ${this._bj_Casino_Bot.UserData.Money}`);
+    }
+
     //#endregion
 
     //#region Onclick
diff --git a/src/script/BJ_Casino_Data.ts b/src/script/BJ_Casino_Data.ts
index d83942a..12bf996 100644
--- a/src/script/BJ_Casino_Data.ts
+++ b/src/script/BJ_Casino_Data.ts
@@ -24,7 +24,7 @@ export class BJ_Casino_Data {
 
     //#region private
 
-    private _conn: NetConnector = null!;
+    private _conn: NetConnector = null;
     private _ws: any;
 
     private _rankMagnificationData: any[] = [];
diff --git a/src/script/Base/BusinessTypeSetting.ts b/src/script/Base/BusinessTypeSetting.ts
index ec08773..6c0d7dd 100644
--- a/src/script/Base/BusinessTypeSetting.ts
+++ b/src/script/Base/BusinessTypeSetting.ts
@@ -68,17 +68,17 @@ export default class BusinessTypeSetting {
     public static IsB2B: boolean = false;
 
     /** 商業LOGO圖代碼(讀同一張表但UI有改的設定) */
-    public static Logo: number = null!;
+    public static Logo: number = null;
     /** 連線IP(網頁版會接網址參數所以要多開變數直接指定) */
-    public static UseHost: string = null!;
+    public static UseHost: string = null;
     /** 連接阜(網頁版會接網址參數所以要多開變數直接指定) */
-    public static UsePort: number = null!;
+    public static UsePort: number = null;
     /** 資源伺服器網址 */
-    public static UsePatch: string = null!;
+    public static UsePatch: string = null;
     /** 帳號 */
-    public static Account: string = null!;
+    public static Account: string = null;
     /** 密碼 */
-    public static Password: string = null!;
+    public static Password: string = null;
 
     // =======================================================================================
     /** 執行環境ProductEnum.ServerType */
diff --git a/src/script/Engine/CatanEngine/NetManagerV2/NetConnector.ts b/src/script/Engine/CatanEngine/NetManagerV2/NetConnector.ts
index 77ba94a..934c397 100644
--- a/src/script/Engine/CatanEngine/NetManagerV2/NetConnector.ts
+++ b/src/script/Engine/CatanEngine/NetManagerV2/NetConnector.ts
@@ -17,7 +17,7 @@ export class NetConnector {
     }
 
     private _host: string;
-    private _ws: WebSocket = null!;
+    private _ws: WebSocket = null;
     private _waitings: WsRequestEnumerator[] = [];
 
     constructor(host: string, port: number, ip: string) {
@@ -119,7 +119,7 @@ export class NetConnector {
         this._ws.onopen = null;
         this._ws.onmessage = null;
         this._ws.onclose = () => { };
-        this._ws = null!;
+        this._ws = null;
 
         this.CleanWaitings();
         this.OnDisconnected.DispatchCallback();