diff --git a/src/assets/202202/team/jesse_lynch.png b/src/assets/202202/team/jesse_lynch.png
index 775f88a..657e2f3 100644
Binary files a/src/assets/202202/team/jesse_lynch.png and b/src/assets/202202/team/jesse_lynch.png differ
diff --git a/src/assets/202202/team/luca_ganzedda.png b/src/assets/202202/team/luca_ganzedda.png
index 657e2f3..775f88a 100644
Binary files a/src/assets/202202/team/luca_ganzedda.png and b/src/assets/202202/team/luca_ganzedda.png differ
diff --git a/src/components/index/DesktopFooter.vue b/src/components/index/DesktopFooter.vue
index e4e06ef..42cc169 100644
--- a/src/components/index/DesktopFooter.vue
+++ b/src/components/index/DesktopFooter.vue
@@ -25,7 +25,7 @@
       </div>
       <div class="sub-list">
         <div class="title">Resources</div>
-        <a href="">Whitepaper</a>
+        <a href="https://whitepaper.cebg.games/">Whitepaper</a>
       </div>
       <div class="sub-list">
         <div class="title">About</div>
@@ -34,7 +34,7 @@
       </div>
       <div class="sub-list">
         <div class="title">Policies</div>
-        <a href="javascript:void(0);" @click="comingSoon">Team of use</a>
+        <a href="/team" @click="comingSoon">Team of use</a>
         <a href="javascript:void(0);" @click="comingSoon">Privacy Policy</a>
       </div>
       <div class="sub-list">
diff --git a/src/components/main/NftSection.vue b/src/components/main/NftSection.vue
index 04202de..d331db3 100644
--- a/src/components/main/NftSection.vue
+++ b/src/components/main/NftSection.vue
@@ -29,6 +29,7 @@ import { EventBus, PRESALE_BEGIN, PRESALE_ERROR, PRESALE_ORDER_GET, PRESALE_SUCC
 import { Loading } from 'element-ui'
 import { ElLoadingComponent } from 'element-ui/types/loading'
 import TimeLoader from '@/components/main/TimeLoader.vue'
+import { UserModule } from '@/store/modules/user'
 
 @Component({
   name: 'NftSection',
@@ -67,7 +68,7 @@ export default class extends Vue {
     this.removeEvents()
   }
 
-  @Watch('accountId')
+  @Watch('isLogin')
   private accountChange() {
     if (this.accountId) {
       this.getPresaleInfo()
@@ -84,6 +85,10 @@ export default class extends Vue {
     return AppModule.accountId
   }
 
+  get isLogin() {
+    return !!UserModule.token && !!AppModule.step
+  }
+
   async fetchData() {
     await this.queryPresaleList()
     await this.getPresaleInfo()
diff --git a/src/components/market/MoileTop.vue b/src/components/market/MoileTop.vue
index 60101c0..6467a52 100644
--- a/src/components/market/MoileTop.vue
+++ b/src/components/market/MoileTop.vue
@@ -13,7 +13,7 @@
       <a class="navItem" href="/">Home</a>
       <a class="navItem" href="javascript:void(0);" @click.stop="comingSoon">Official Shop</a>
       <a class="navItem dash" href="javascript:void(0);" @click.stop="comingSoon">Marketplace</a>
-      <label v-if="!walletCollected" class="navItem" @click="collectToWallet">Connect Wallet</label>
+      <label v-if="!logined" class="navItem" @click="collectToWallet">Connect Wallet</label>
 <!--      <button v-if="!walletCollected" class="general-btn connectButton mobile" @click="collectToWallet">-->
 <!--        <span>Connect Wallet</span>-->
 <!--      </button>-->
@@ -22,7 +22,7 @@
 <!--        <div>My Profile</div>-->
 <!--        <img src="data:image/svg+xml,%3csvg width='10' height='18' viewBox='0 0 10 18' fill='none' xmlns='http://www.w3.org/2000/svg'%3e %3cpath d='M0.0507022 16.0711L1.46491 17.4854L9.9502 9.00007L1.46492 0.514787L0.0507015 1.929L7.12177 9.00007L0.0507022 16.0711Z' fill='%23BCADF2' /%3e %3c/svg%3e">-->
 <!--      </label>-->
-      <label class="navItem" v-if="walletCollected" @click="disconnectWallet">Log Out</label>
+      <label class="navItem" v-if="logined" @click="disconnectWallet">Log Out</label>
       <div class="navChild" :class="{'show': subShow}">
         <label class="navItem profile" @click="subShow=!subShow">
           <img class="arrowIcon" src="data:image/svg+xml,%3csvg width='10' height='18' viewBox='0 0 10 18' fill='none' xmlns='http://www.w3.org/2000/svg'%3e %3cpath d='M0.0507022 16.0711L1.46491 17.4854L9.9502 9.00007L1.46492 0.514787L0.0507015 1.929L7.12177 9.00007L0.0507022 16.0711Z' fill='%23BCADF2' /%3e %3c/svg%3e">
@@ -39,9 +39,10 @@
 
 <script lang="ts">
 import { Component, Vue } from 'vue-property-decorator'
-import { BlockChain } from '@/utils/blockchain'
 import { AppModule } from '@/store/modules/app'
 import { Message } from 'element-ui'
+import { UserModule } from '@/store/modules/user'
+import ChainManager from '@/utils/ChainManager'
 
 @Component({
   name: 'MobileTop',
@@ -52,12 +53,20 @@ import { Message } from 'element-ui'
 export default class extends Vue {
   menuShow = false
   subShow = false
-  bc = new BlockChain();
+  chainManager = new ChainManager()
 
   get walletCollected() {
     return AppModule.walletConnected
   }
 
+  async created() {
+    await this.chainManager.init()
+  }
+
+  get logined() {
+    return !!UserModule.token && !!AppModule.step
+  }
+
   toggleMenu() {
     this.menuShow = !this.menuShow
     if (!this.menuShow) {
@@ -67,12 +76,12 @@ export default class extends Vue {
 
   async collectToWallet() {
     this.menuShow = false
-    return this.bc.connect()
+    return this.chainManager.login()
   }
 
   async disconnectWallet() {
     this.menuShow = false
-    return this.bc.disconnect()
+    return this.chainManager.logout()
   }
 
   comingSoon() {
diff --git a/src/components/market/NftItem.vue b/src/components/market/NftItem.vue
index efcf4ec..31c422e 100644
--- a/src/components/market/NftItem.vue
+++ b/src/components/market/NftItem.vue
@@ -28,6 +28,7 @@ import { Message } from 'element-ui'
 import { EventBus, NEED_LOGIN, PRESALE_BEGIN, PRESALE_ERROR, PRESALE_ORDER_GET } from '@/utils/event-bus'
 import { UserModule } from '@/store/modules/user'
 import { getNonce } from '@/api/User'
+import ChainManager from '@/utils/ChainManager'
 
 declare module 'vue/types/vue' {
   interface Vue {
@@ -42,7 +43,7 @@ declare module 'vue/types/vue' {
   props: ['data']
 })
 export default class extends Vue {
-  bc = new BlockChain()
+  chainManger = new ChainManager()
 
   get walletCollected() {
     return AppModule.walletConnected
@@ -71,14 +72,13 @@ export default class extends Vue {
   }
 
   get logined() {
-    return !!UserModule.token
+    return !!UserModule.token && !!AppModule.step
   }
 
   async buyItem() {
     console.log('on click item: ', this.data.id)
     if (!this.logined) {
-      EventBus.$emit(NEED_LOGIN)
-      return
+      await this.chainManger.login()
     }
     if (!this.canBuy) {
       Message({
@@ -88,31 +88,6 @@ export default class extends Vue {
       })
       return
     }
-    if (!this.logined) {
-      try {
-        await this.bc.connect()
-      } catch (err) {
-        Message({
-          message: err.message,
-          type: 'error',
-          duration: 5 * 1000
-        })
-        return
-      }
-
-      const preRequest: any = await getNonce({
-        account: AppModule.accountId,
-        net_id: AppModule.chainId
-      })
-      if (!preRequest.token_state) {
-        await UserModule.Login({
-          bcInstance: this.bc,
-          account: AppModule.accountId,
-          chainId: AppModule.chainId,
-          nonce: preRequest.nonce
-        })
-      }
-    }
     if (!AppModule.canBuy) {
       Message({
         message: 'Can`t buy current time',
@@ -130,8 +105,8 @@ export default class extends Vue {
     EventBus.$emit(PRESALE_BEGIN)
     const account = AppModule.accountId
     try {
-      const price = this.bc.parsePrice(this.data.priceDiscount!, this.data.decimals!)
-      const { nonce, signature } = await this.bc.signPresale({
+      const price = this.chainManger.bc.parsePrice(this.data.priceDiscount!, this.data.decimals!)
+      const { nonce, signature } = await this.chainManger.bc.signPresale({
         type: this.data.recordId!,
         paymentTokenAddress: this.data.coinAddress!,
         price,
@@ -145,7 +120,7 @@ export default class extends Vue {
         nonce,
         signature
       }
-      await this.bc.increaseAllowance(this.data.coinAddress!, price)
+      await this.chainManger.bc.increaseAllowance(this.data.coinAddress!, price)
       const res: any = await buyBox(buyData)
       const orderId = res.order_id
       localStorage.setItem('tmp_presale_order_id', orderId)
diff --git a/src/components/market/TopMenu.vue b/src/components/market/TopMenu.vue
index 48ea4ff..09717b0 100644
--- a/src/components/market/TopMenu.vue
+++ b/src/components/market/TopMenu.vue
@@ -33,10 +33,10 @@
 <!--        <div class="contact">-->
 <!--          <span class="span">Contact Us</span>-->
 <!--        </div>-->
-        <div v-if="!walletCollected" @click="collectToWallet" class="walletBtn active">
+        <div v-if="!logined" @click="collectToWallet" class="walletBtn active">
           <span>Connect Wallet</span>
         </div>
-        <div v-if="walletCollected" @click="disconnectWallet" class="walletBtn">
+        <div v-if="logined" @click="disconnectWallet" class="walletBtn">
           <span>Logout</span>
         </div>
 <!--        <img-->
@@ -51,7 +51,7 @@
       </div>
     </div>
     <top-user-info
-      v-show="infoPanelShow && walletCollected"
+      v-show="infoPanelShow && logined"
       v-on:close-self="onClose"
     ></top-user-info>
   </div>
@@ -60,9 +60,10 @@
 <script lang="ts">
 import { Component, Vue } from 'vue-property-decorator'
 import TopUserInfo from '@/components/market/TopUserInfo.vue'
-import { BlockChain } from '@/utils/blockchain'
 import { AppModule } from '@/store/modules/app'
 import { Message } from 'element-ui'
+import ChainManager from '@/utils/ChainManager'
+import { UserModule } from '@/store/modules/user'
 
 declare module 'vue/types/vue' {
   interface Vue {
@@ -77,18 +78,22 @@ declare module 'vue/types/vue' {
 })
 export default class extends Vue {
   infoPanelShow = false
-  bc = new BlockChain();
+  chainManager = new ChainManager()
 
-  get walletCollected() {
-    return AppModule.walletConnected
+  async created() {
+    await this.chainManager.init()
+  }
+
+  get logined() {
+    return !!UserModule.token && !!AppModule.step
   }
 
   async collectToWallet() {
-    return this.bc.connect()
+    return this.chainManager.login()
   }
 
   async disconnectWallet() {
-    return this.bc.disconnect()
+    return this.chainManager.logout()
   }
 
   onClose() {
diff --git a/src/components/mobile/main/MobileFooter.vue b/src/components/mobile/main/MobileFooter.vue
index b6d5d23..c393161 100644
--- a/src/components/mobile/main/MobileFooter.vue
+++ b/src/components/mobile/main/MobileFooter.vue
@@ -31,7 +31,7 @@
           <div>Resources</div>
           <img class="btn-plus" src="@/assets/mobile/index/icon-plus.png" alt="plus"/>
         </div>
-        <a href="">Whitepaper</a>
+        <a href="https://whitepaper.cebg.games/">Whitepaper</a>
       </div>
       <div class="sub-list" :class="{'close': status[2]}">
         <div class="title" @click="toggleSublist(2)">
@@ -46,7 +46,7 @@
           <div>Policies</div>
           <img class="btn-plus" src="@/assets/mobile/index/icon-plus.png" alt="plus"/>
         </div>
-        <a href="javascript:void(0);" @click="comingSoon">Team of use</a>
+        <a href="/team">Team of use</a>
         <a href="javascript:void(0);" @click="comingSoon">Privacy Policy</a>
       </div>
       <div class="sub-list" :class="{'close': status[4]}">