Hi there! I understand you're seeing a black screen when you open the GHIN app on your iPhone. Let’s work together to get this fixed.

To start, can you tell me if the app opens at all before showing the black screen? Also, are you connected to Wi-Fi or cellular data?

Meanwhile, here's a step-by-step approach to try:

1. Force Close the GHIN App:
- If your iPhone has Face ID, swipe up from the bottom and pause in the middle of the screen until you see the app switcher.
- If it has a Home button, double-click it.
- Find the GHIN app preview and swipe it up to close it fully.
- Then reopen the app.

2. Check for App and iOS Updates:
- Open the App Store, tap your profile icon, and see if there’s an update available for GHIN. If yes, update it.
- Also, go to Settings > General > Software Update to ensure your iOS 13 (10.15.7 corresponds to Mac OS X Catalina, but double-check your iPhone iOS version) is current.

3. Restart Your iPhone:
- Hold the side button and either volume button, then slide to power off. Turn it back on after a minute.

4. Check App Permissions:
- Go to Settings > GHIN and make sure it has the necessary permissions (like Cellular Data if you’re on cellular).

5. Reinstall the App:
- If the problem persists, press and hold the GHIN app icon, tap Remove App, then Delete App.
- Go back to the App Store and reinstall GHIN.

6. Try Airplane Mode Trick:
- Turn on Airplane mode, then force close and relaunch the app. After a moment, turn off Airplane mode and see if the app refreshes properly.

If none of these steps resolve the black screen, please let me know. I can check if there are any ongoing server issues or would suggest contacting GHIN support at [email protected] for further help.

How does this sound? Would you like me to walk you through any of these steps?