diff --git a/src/layouts/components/Navbar.vue b/src/layouts/components/Navbar.vue
index 7dfbcf56..f7fd0ca7 100644
--- a/src/layouts/components/Navbar.vue
+++ b/src/layouts/components/Navbar.vue
@@ -54,7 +54,6 @@
           <small id="data-provider">
             {{ currentApi }} ({{ selected_chain.sdk_version || '-' }})
             <b-dropdown
-              v-if="apiOptions.length > 1"
               class="ml-0"
               variant="flat-primary"
               no-caret
@@ -163,7 +162,6 @@ import DarkToggler from '@core/layouts/components/app-navbar/components/DarkTogg
 import Locale from '@core/layouts/components/app-navbar/components/Locale.vue'
 import SearchBar from '@core/layouts/components/app-navbar/components/SearchBar.vue'
 // import CartDropdown from '@core/layouts/components/app-navbar/components/CartDropdown.vue'
-import store from '@/store'
 import { getLocalAccounts, timeIn, toDay } from '@/libs/utils'
 // import UserDropdown from '@core/layouts/components/app-navbar/components/UserDropdown.vue'
 
@@ -197,12 +195,10 @@ export default {
     },
   },
   data() {
-    const conf = store.state.chains.selected
-    const s = localStorage.getItem(`${conf.chain_name}-api-index`)
     return {
       variant: 'success',
       tips: 'Synced',
-      index: s || 0,
+      index: 0,
     }
   },
   computed: {
@@ -212,16 +208,16 @@ export default {
     },
     selected_chain() {
       this.block()
-      return store.state.chains.selected
+      return this.$store.state.chains.selected
     },
     chainVariant() {
       return this.variant
     },
     currentApi() {
-      return this.apiOptions[Number(this.index)]
+      return this.index + 1 > this.apiOptions.length ? this.apiOptions[0] : this.apiOptions[this.index]
     },
     apiOptions() {
-      const conf = store.state.chains.selected
+      const conf = this.$store.state.chains.selected
       if (Array.isArray(conf.api)) {
         return conf.api
       }
@@ -237,16 +233,19 @@ export default {
   methods: {
     change(v) {
       this.index = v
-      const conf = store.state.chains.selected
+      const conf = this.$store.state.chains.selected
       localStorage.setItem(`${conf.chain_name}-api-index`, v)
     },
     block() {
-      store.commit('setHeight', 0)
+      const conf = this.$store.state.chains.selected
+      const s = localStorage.getItem(`${conf.chain_name}-api-index`) || 0
+      this.index = Number(s)
+      this.$store.commit('setHeight', 0)
       this.$http.getLatestBlock().then(block => {
-        store.commit('setHeight', Number(block.block.header.height))
+        this.$store.commit('setHeight', Number(block.block.header.height))
         if (timeIn(block.block.header.time, 1, 'm')) {
           this.variant = 'danger'
-          this.tips = `Halted ${toDay(block.block.header.time, 'from')}, Height: ${store.state.chains.height} `
+          this.tips = `Halted ${toDay(block.block.header.time, 'from')}, Height: ${this.$store.state.chains.height} `
         } else {
           this.variant = 'success'
           this.tips = 'Synced'
diff --git a/src/libs/fetch.js b/src/libs/fetch.js
index da74a323..f94e6b22 100644
--- a/src/libs/fetch.js
+++ b/src/libs/fetch.js
@@ -251,33 +251,6 @@ export default class ChainFetch {
     })
   }
 
-  async get(url, config = null) {
-    let host = ''
-    if (!config) {
-      this.getSelectedConfig()
-    }
-    host = (config ? config.api : this.config.api)
-    const finalurl = (Array.isArray(host) ? host[this.getApiIndex(config)] : host) + url
-    // finalurl = finalurl.replaceAll('v1beta1', this.getEndpointVersion())
-    const ret = await fetch(finalurl).then(response => response.json())
-    return ret
-  }
-
-  getApiIndex(config = null) {
-    const conf = config || this.config
-    return localStorage.getItem(`${conf.chain_name}-api-index`) || 0
-  }
-
-  async getUrl(url) {
-    this.getSelectedConfig()
-    return fetch(url).then(res => res.json())
-  }
-
-  static fetch(host, url) {
-    const ret = fetch((Array.isArray(host) ? host[0] : host) + url).then(response => response.json())
-    return ret
-  }
-
   async getAuthAccount(address, config = null) {
     return this.get('/auth/accounts/'.concat(address), config).then(data => {
       const result = commonProcess(data)
@@ -420,9 +393,9 @@ export default class ChainFetch {
       this.getSelectedConfig()
     }
     const conf = config || this.config
-    const index = localStorage.getItem(`${conf.chain_name}-api-index`) || 0
+    const index = this.getApiIndex(config)
     // Default options are marked with *
-    const response = await fetch((Array.isArray(conf.api) ? conf.api[Number(index)] : conf.api) + url, {
+    const response = await fetch((Array.isArray(conf.api) ? conf.api[index] : conf.api) + url, {
       method: 'POST', // *GET, POST, PUT, DELETE, etc.
       // mode: 'cors', // no-cors, *cors, same-origin
       // credentials: 'same-origin', // redirect: 'follow', // manual, *follow, error
@@ -437,6 +410,33 @@ export default class ChainFetch {
     // const response = axios.post((config ? config.api : this.config.api) + url, data)
     return response.json() // parses JSON response into native JavaScript objects
   }
+
+  async get(url, config = null) {
+    if (!config) {
+      this.getSelectedConfig()
+    }
+    const conf = config || this.config
+    const finalurl = (Array.isArray(conf.api) ? conf.api[this.getApiIndex(config)] : conf.api) + url
+    // finalurl = finalurl.replaceAll('v1beta1', this.getEndpointVersion())
+    const ret = await fetch(finalurl).then(response => response.json())
+    return ret
+  }
+
+  getApiIndex(config = null) {
+    const conf = config || this.config
+    const index = Number(localStorage.getItem(`${conf.chain_name}-api-index`) || 0)
+    return index < conf.api.length ? index : 0
+  }
+
+  async getUrl(url) {
+    this.getSelectedConfig()
+    return fetch(url).then(res => res.json())
+  }
+
+  static fetch(host, url) {
+    const ret = fetch((Array.isArray(host) ? host[0] : host) + url).then(response => response.json())
+    return ret
+  }
 }
 
 // export default chainAPI