Hi there! I understand how frustrating it can be when you're stuck at the authentication screen. Let's see if we can get this sorted out for you.

First, could you let me know if you've recently changed your password or if you’re trying to log in from multiple devices at the same time? Also, are there any error messages beyond “authenticating”?

In the meantime, here are some steps you can try:

1. Close and Reopen the App: Sometimes a simple restart can fix issues.

2. Check Your Internet Connection: Ensure you have a stable Wi-Fi or cellular data connection.

3. Clear Cache (if applicable): Although iOS devices don’t allow you to clear app cache directly, you can try deleting the app and reinstalling it:
- Press and hold the app icon until the options appear.
- Tap “Remove App” and confirm.
- Then, go to the App Store and download it again.

4. Disable VPN: If you're using a VPN, try disconnecting it and see if that helps.

If you still have the issue after trying these steps, please let me know, and I can help you further or escalate this problem if needed.

Are you satisfied with the solution I provided?