Click on my app account it doesn't work

The QR code is working, my whatsapp is linked to the app. But click on my app account it doesn't work. Whatsapp marketing tools

Click on my app account it doesn't work

Problems 

The QR code is working, my whatsapp is linked to the app. But click on my app account it doesn't work.

Solutions:

Delete File and Clear Cache on the Brower
  1. Delete file assets/core.js
  2. Clear cache on your browser (CTR + SHIFT + R)