Hi! I understand that you’ve paid for a monthly subscription to Avatan but can’t log into the app and it’s not working. Let’s try to sort this out together.

First, could you tell me:
- Are you seeing any error messages when you try to log in? If yes, what do they say?
- Have you tried restarting your iPhone or reinstalling the Avatan app yet?
- Is your iPhone connected to the internet properly (Wi-Fi or cellular data)?

In the meantime, here's a step-by-step approach to try:

1. Check Internet Connection: Make sure your iPhone is connected to a stable internet connection.

2. Restart the App: Close the Avatan app completely (swipe it away from the app switcher) and reopen it.

3. Restart Your iPhone: Power off your iPhone and turn it back on to clear any temporary glitches.

4. Check Subscription Status:
- Go to your iPhone Settings > your Apple ID (top of the screen) > Subscriptions.
- Confirm that your Avatan subscription is active and paid for.

5. Update the App: Open the App Store, tap your profile icon, scroll to see pending updates, and update Avatan if available.

6. Reinstall the App:
- Delete the Avatan app (long press app icon > Remove App).
- Restart your iPhone.
- Reinstall Avatan from the App Store.

7. Sign In Again: After reinstalling, try signing in with your credentials.

If after all these steps you still can't log in despite an active subscription, there might be an issue with your account or the app’s server.

Please let me know what you find or if any step is unclear, so we can continue troubleshooting or escalate to the technical team if necessary. Are you able to try these steps now?