diff --git a/frontend/app/javascript/dashboard/components/ChatList.vue b/frontend/app/javascript/dashboard/components/ChatList.vue
index 3ba3435a..b7192ba4 100644
--- a/frontend/app/javascript/dashboard/components/ChatList.vue
+++ b/frontend/app/javascript/dashboard/components/ChatList.vue
@@ -797,6 +797,19 @@ onMounted(() => {
   }
 });
 
+// Fallback: if fetchAllConversations wasn't triggered during onMounted
+// (e.g., race condition with route transition), retry after store settles.
+// Uses a one-shot watch on conversationStats to detect empty state.
+const _fallbackWatch = watch(conversationStats, (stats) => {
+  if (!stats) return;
+  const totalCount = (stats.mineCount || 0) + (stats.unAssignedCount || 0) + (stats.allCount || 0);
+  // If stats show conversations exist but chatList is empty, re-fetch
+  if (totalCount > 0 && chatLists.value.length === 0 && !chatListLoading.value) {
+    _fallbackWatch(); // unwatch immediately — one-shot
+    fetchConversations();
+  }
+}, { immediate: false });
+
 const deleteConversationDialogRef = ref(null);
 const selectedConversationId = ref(null);
 
diff --git a/frontend/app/javascript/dashboard/components/copilot/CopilotContainer.vue b/frontend/app/javascript/dashboard/components/copilot/CopilotContainer.vue
index 1cb915ea..33f63d8e 100644
--- a/frontend/app/javascript/dashboard/components/copilot/CopilotContainer.vue
+++ b/frontend/app/javascript/dashboard/components/copilot/CopilotContainer.vue
@@ -66,7 +66,10 @@ const activeAssistant = computed(() => {
     if (inboxMatchedAssistant) return inboxMatchedAssistant;
   }
   // If neither of the above is available, the first assistant in the account takes preference.
-  return assistants.value[0];
+  if (assistants.value && assistants.value.length > 0) {
+    return assistants.value[0];
+  }
+  return null;
 });
 
 const closeCopilotPanel = () => {
diff --git a/frontend/app/javascript/dashboard/routes/dashboard/notifications/components/NotificationTable.vue b/frontend/app/javascript/dashboard/routes/dashboard/notifications/components/NotificationTable.vue
index 7f5d3ce2..d8b3559f 100644
--- a/frontend/app/javascript/dashboard/routes/dashboard/notifications/components/NotificationTable.vue
+++ b/frontend/app/javascript/dashboard/routes/dashboard/notifications/components/NotificationTable.vue
@@ -108,10 +108,10 @@ export default {
           </td>
           <td class="thumbnail--column">
             <Avatar
-              v-if="notificationItem.primary_actor.meta.assignee"
-              :src="notificationItem.primary_actor.meta.assignee.thumbnail"
+              v-if="notificationItem.primary_actor?.meta?.assignee"
+              :src="notificationItem.primary_actor?.meta?.assignee?.thumbnail || ''"
               :size="28"
-              :name="notificationItem.primary_actor.meta.assignee.name"
+              :name="notificationItem.primary_actor?.meta?.assignee?.name || ''"
               rounded-full
             />
           </td>
diff --git a/frontend/app/javascript/dashboard/store/utils/api.js b/frontend/app/javascript/dashboard/store/utils/api.js
index 470d98df..dccd881c 100644
--- a/frontend/app/javascript/dashboard/store/utils/api.js
+++ b/frontend/app/javascript/dashboard/store/utils/api.js
@@ -92,12 +92,27 @@ export const parseAPIErrorResponse = error => {
     return error?.response?.data?.message;
   }
   if (error?.response?.data?.error) {
-    return error?.response?.data?.error;
+    // error could be a string or an object with a message property
+    if (typeof error.response.data.error === 'string') {
+      return error.response.data.error;
+    }
+    if (error.response.data.error?.message) {
+      return error.response.data.error.message;
+    }
+    return JSON.stringify(error.response.data.error);
   }
   if (error?.response?.data?.errors) {
-    return error?.response?.data?.errors[0];
+    const first = error.response.data.errors;
+    if (Array.isArray(first)) {
+      return first[0];
+    }
+    return first;
   }
-  return error;
+  // Fallback: return a useful default message rather than the raw error object
+  if (error?.message && typeof error.message === 'string') {
+    return error.message;
+  }
+  return 'Request failed. Please try again.';
 };
 
 export const throwErrorMessage = error => {
diff --git a/frontend/super_admin.html b/frontend/super_admin.html
new file mode 100644
index 00000000..186e109f
--- /dev/null
+++ b/frontend/super_admin.html
@@ -0,0 +1,79 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta charset="utf-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no, user-scalable=0" />
+    <title>GoChat Super Admin</title>
+    <link rel="icon" type="image/png" href="/favicon-32x32.png" />
+    <script>
+      (function () {
+        var cfg = window.__GOCHAT_CONFIG__ || {};
+        window.chatwootConfig = Object.assign(
+          {
+            hostURL: '',
+            helpCenterURL: '',
+            fbAppId: '',
+            instagramAppId: '',
+            tiktokAppId: '',
+            googleOAuthClientId: '',
+            googleOAuthCallbackUrl: '',
+            allowedLoginMethods: ['email'],
+            fbApiVersion: '',
+            whatsappAppId: '',
+            whatsappConfigurationId: '',
+            whatsappApiVersion: '',
+            signupEnabled: 'false',
+            isMfaEnabled: 'false',
+            inboxEventsEnabled: 'false',
+            selectedLocale: 'zh_CN',
+            enabledLanguages: [
+              { name: '中文', iso_639_1_code: 'zh_CN' },
+              { name: 'English', iso_639_1_code: 'en' },
+            ],
+            helpUrls: {},
+          },
+          cfg
+        );
+        window.globalConfig = Object.assign(
+          {
+            INSTALLATION_NAME: 'GoChat',
+            CREATE_NEW_ACCOUNT_FROM_DASHBOARD: false,
+            DISPLAY_MANIFEST: false,
+            LOGO_THUMBNAIL: '/favicon-32x32.png',
+          },
+          cfg.globalConfig || {}
+        );
+        window.errorLoggingConfig = '';
+        window.browserConfig = { browser_name: navigator.userAgent };
+        
+        // sync auth tokens from cookie to localStorage
+        (function() {
+          try {
+            var cookies = document.cookie.split('; ');
+            var sessionCookie = cookies.find(function(c) { return c.startsWith('cw_d_session_info='); });
+            if (sessionCookie) {
+              var raw = decodeURIComponent(sessionCookie.split('=').slice(1).join('='));
+              var extract = function(key) {
+                var match = raw.match(new RegExp('"' + key + '":"([^"]+)"'));
+                return match ? match[1] : '';
+              };
+              var token = extract('access-token');
+              if (token) {
+                localStorage.setItem('access-token', token);
+                localStorage.setItem('client', extract('client'));
+                localStorage.setItem('uid', extract('uid'));
+                localStorage.setItem('token-type', extract('token-type') || 'Bearer');
+                localStorage.setItem('expiry', extract('expiry'));
+              }
+            }
+          } catch(e) { /* ignore */ }
+        })();
+      })();
+    </script>
+  </head>
+  <body class="text-slate-600">
+    <div id="app"></div>
+    <noscript>This app works best with JavaScript enabled.</noscript>
+    <script type="module" src="/app/javascript/entrypoints/superadmin.js"></script>
+  </body>
+</html>
diff --git a/frontend/vite.config.ts b/frontend/vite.config.ts
index f7adfe65..3c293456 100644
--- a/frontend/vite.config.ts
+++ b/frontend/vite.config.ts
@@ -88,6 +88,7 @@ export default defineConfig({
     historyApiFallback: {
       rewrites: [
         { from: /^\/widget/, to: '/widget.html' },
+        { from: /^\/super_admin/, to: '/super_admin.html' },
       ],
     },
     proxy: {