Hi! I understand you're seeing a "internal error" when trying to log into Blockman GO. To help you better, could you tell me if this happens right after you enter your login details, or does it appear after some time? Also, have you tried any fixes so far, like restarting the app or your device?

In the meantime, here are some steps that usually help with such login errors on Android 12 with WebKit browser engine:

1. Check Internet Connection: Make sure your network is stable—try switching between Wi-Fi and mobile data to see if that resolves the issue.

2. Clear Cache and Data for the App:
- Go to your Android device's Settings > Apps > Blockman GO.
- Tap on Storage, then choose "Clear Cache" and "Clear Data".
- Note that clearing data might log you out, so have your login info ready.

3. Update the App: Ensure you have the latest version of Blockman GO installed from the official store. Sometimes bugs causing login errors are fixed in updates.

4. Reinstall the App: If issues persist, uninstall and reinstall the app to refresh all files.

5. Check Device Time & Date Settings: Incorrect time or date can cause server communication errors leading to login failures. Set your device to automatic date and time.

6. Try Logging In via Browser: Since your browser engine is WebKit, try to log into Blockman GO's website using Chrome or another browser on your device to check if the problem is app-specific.

If you tried some of these already, please let me know so I can assist you further. Also, if there is an error code displayed, sharing that would help diagnose better.

Are you satisfied with this initial troubleshooting approach?