Hi there! I see you're getting the message "An unexpected error occurred" while using the Equate Heart Chart app on your Android device. Could you tell me a bit more about when exactly this error shows up? For example:

- Are you trying to open the app, log in, or perform a specific action when it happens?
- Does the error appear every time or only occasionally?
- Have you tried any steps already to fix it, like restarting your device or reinstalling the app?

Once I have a bit more context, I can guide you through some targeted steps to resolve it.

I am trying to log in.

Thanks for clarifying that you're facing this error when trying to log in. Let's work through some steps to get you signed in smoothly on your Android device with WebKit browser.

1. Check Your Internet Connection:
Make sure you have a stable internet connection—Wi-Fi or cellular data—that's working correctly.

2. Verify Your Login Credentials:
Double-check that the email/username and password you're entering are correct. It’s easy to mistype, especially on mobile keyboards.

3. Clear Browser Cache and Data:
Since you’re using the WebKit browser on Android 10, clearing your browser's cache and cookies can often resolve unexpected login errors. Here’s how:
- Open your device Settings.
- Go to Apps or Application Manager.
- Find and tap on your WebKit browser.
- Select Storage & cache.
- Tap Clear Cache and then Clear Storage/Data.
- Restart the browser and try logging in again.

4. Try a Different Browser:
If possible, try logging in using another browser like Chrome or Firefox to see if the issue is specific to WebKit.

5. Reset Your Password:
If you suspect your password might be the problem, use the "Forgot Password" option on the login screen to reset it.

6. Update the App or Browser:
If you access the login via an app or browser, ensure it’s updated to the latest version available.

If these steps don’t help and the error persists, it could be a backend issue with the Equate Heart Chart system. You can reach out to their support team directly at 1-888-287-1915, or check their support page for any updates: Equate Heart Chart Support

Please try these steps, and let me know how it goes! Are you comfortable with me guiding you through clearing the browser cache first?