Hi there! I understand that you're experiencing an issue with Crossword Jam where the game stops working and displays a white screen. Let’s see if we can get that resolved for you.

Firstly, could you let me know if you've had a chance to try any troubleshooting steps so far? For example, restarting the app or your iPhone?

If you haven't tried that yet, here are a few simple steps to start with:

1. Force Close the App: Swipe up from the bottom of the screen (or double-click the home button if your iPhone has one) to see your open apps. Find Crossword Jam, then swipe it up to close it.

2. Restart Your iPhone: Press and hold the side button and the volume down button until you see the "slide to power off" slider. Slide it to turn off your iPhone, then turn it back on after a few seconds.

3. Check Your Internet Connection: Make sure you have a stable internet connection, either Wi-Fi or cellular data, as this can sometimes affect game performance.

If you've already done these and the issue persists, we might need to take a few additional steps:

4. Reinstall the App: If force closing and restarting didn't work, you could uninstall the app and reinstall it from the App Store.

5. Clear App Cache: Sometimes, clearing the app cache can help. However, on iPhones, this often means completely uninstalling and reinstalling the app.

6. Update iOS and the App: Ensure your iPhone's iOS and the Crossword Jam app are both updated to the latest versions available.

If none of these solutions work, it may be best to reach out directly to Crossword Jam support at [email protected] for further assistance.

Please let me know how it goes, and if you have any other details about the issue, feel free to share! Are you satisfied with the solutions I provided?