Hi! I understand you're having trouble with the Next Toppers app not showing any upcoming or live classes. Let's work together to get this sorted out.

To start, could you please tell me if you've already tried any troubleshooting steps like restarting the app, checking your internet connection, or logging out and logging back in? Also, are you using the Windows app or accessing Next Toppers through a web browser on your WebKit device?

Once I have a bit more info, I'll guide you through some steps. Meanwhile, here’s a quick general approach we can try:

1. Check Internet Connection: Ensure your device has a stable internet connection.
2. Refresh or Restart the App: Close the app completely and reopen it.
3. Clear Cache or Temporary Data: Sometimes, stale data can cause issues.
4. Log Out and Back In: This refreshes your session.
5. Check for Updates: If you have the app installed, make sure it’s updated to the latest version.
6. Reinstall the App: If the above don’t work, uninstall and reinstall the app on your Windows device.

If these steps don’t resolve the issue, the problem could be on the app’s server side or related to your account permissions.

Could you let me know what you have tried so far and if there's any error message you see? That way, I can tailor the next steps for you!