Hi! I see you're having trouble logging into the BLK app. Let's get this sorted out together.

To start, can you tell me if you’re seeing any specific error messages when you try to log in? Also, are you logging in with an email, phone number, or social media account? This info will help narrow down the issue.

Meanwhile, here are some general steps you can try:

1. Check your login details: Make sure your email or phone number and password are entered correctly.

2. Reset your password: If you’re unsure about your password or think it might be incorrect, try resetting it through the "Forgot Password" option.

3. Verify your internet connection: Since your device runs Android 10 on WebKit browser, a stable internet connection is essential for login. Try switching between Wi-Fi and mobile data.

4. Clear app cache: Sometimes cached data can cause login problems. Go to your device Settings > Apps > BLK > Storage > Clear Cache. Then try logging in again.

5. Update or reinstall the app: Make sure your BLK app is updated to the latest version from the Google Play Store. If it is and the problem persists, uninstall and then reinstall the app.

If you've already tried these, please let me know which steps you have done and any error details you see. We can dive into more advanced troubleshooting from there.

And if you want, I can also check for any known server issues related to BLK login right now.

Are you able to try the above and share what happens?