Hi there! I understand you're having trouble logging into the TREAT app. To help you better, could you tell me what exactly happens when you try to log in? For example, are you seeing any error messages, or does the app not respond at all when you submit your credentials?

Meanwhile, I can guide you through some common troubleshooting steps for TREAT app login issues:

1. Check Your Credentials: Double-check that your username/email and password are entered correctly, paying attention to capitalization and spaces.

2. Reset Password: If the app says your password is incorrect, try using the "forgot password" option to reset it. Sometimes resetting resolves login blocks.

3. Reinstall the App: If you haven't already, try uninstalling and then reinstalling the TREAT app. This action often fixes login glitches by refreshing app files.

4. Clear Cache/Data: Since you're on Windows and WebKit-based environment, try clearing the browser cache or the app cache if it's a standalone app. This can remove corrupted temporary files.

5. Check for Updates: Ensure your app and Windows OS are up to date. Sometimes compatibility improves with latest patches.

6. Internet Connection: Make sure your device is connected to a stable internet connection, as login requires server communication.

If you’ve already tried some of these steps, please let me know which ones so I can suggest more advanced options. Also, any error text or screenshots would be helpful!

Are you able to tell me more about the login issue you're experiencing?