try chaning page id

hichina-main-front-mobile-first/src/pages/ContactPage.vue

@@ -44,7 +44,7 @@ export default {
   setup() {
     function setupChat() {
       var chatbox = document.getElementById("fb-customer-chat");
-      chatbox.setAttribute("page_id", "1534271790187013");
+      chatbox.setAttribute("page_id", "123230297530852");
       chatbox.setAttribute("attribution", "biz_inbox");
     }
     function initFacebookSDK() {