Hi! I understand that your MyMTA bus app on your Android device is not opening and you can't view your bus lines. I’d like to help you get this sorted out.

First, just to clarify:
- Are you opening the app and it just stays on a blank or loading screen?
- Or does it crash or close immediately after you tap it?
- Also, could you let me know if this happened suddenly after an update or has it been like this for a while?

These details will help me tailor the fix for you. Meanwhile, here’s a step-by-step guide to try a quick fix based on common Android app issues:

1. Force Stop the App
- Go to your phone’s Settings.
- Tap on Apps or Applications (it might vary).
- Find and tap on MYmta in the list.
- Tap Force Stop to close it completely.

2. Clear Cache and Data
- In the same app settings page, tap Storage.
- Tap Clear Cache first and then Clear Data. Note: Clearing data will reset app settings, so you might need to log in again.

3. Restart Your Device
- After clearing data, restart your phone.

4. Reopen the App
- Try opening the MyMTA app again and check if it loads your bus lines.

If that doesn't work, make sure your app is updated to the latest version from Google Play Store. Sometimes older versions can run into trouble, especially on Android 10. If the update is missing or fails, reinstalling the app might help.

Please try these steps and let me know how it goes. If the problem continues, we can look into more advanced troubleshooting or check if there's a broader issue with the app service.

Are you comfortable trying these steps now?