bug fixes

client/.config.dev.js

 module.exports = {
   demain: 'dev.ezijing.com',
-  url: 'https://sofia-learning2.ezijing.com/api',
+  url: 'https://bluestar-learning2.ezijing.com/api',
   apiBaseURL: '/',
   others: {
     url: '/app/learn/course'