If the Powerball app is not displaying or functioning properly on your device, you can follow these steps to troubleshoot and resolve the issue:

1. Restart the App: Close the Powerball app completely and reopen it. This can help clear any temporary glitches causing the display issue.

2. Check for Updates: Ensure that the Powerball app is updated to the latest version. Go to the App Store, search for the Powerball app, and see if there’s an option to update.

3. Clear Cache and History: If you're using a web version on Safari, clear your browsing history and website data. Go to Settings > Safari > Clear History and Website Data. This can resolve loading issues with web applications - learn more.

4. Check Internet Connection: Make sure your device is connected to a stable internet connection. You can test this by trying to access other websites or apps.

5. Reboot Your Device: Restart your iPhone. Sometimes, simply rebooting your device can fix various software-related issues.

6. Check Powerball Server Status: There might be temporary outages or server issues with the Powerball website. Check the server status at isitdownrightnow.com to see if others are experiencing similar problems - learn more.

7. Reinstall the App: If the issue persists, try uninstalling and then reinstalling the Powerball app. This might resolve any corrupted files that could be causing the display issues.

8. Contact Support: If none of the above solutions work, consider reaching out to Powerball support for further assistance. They may provide specific troubleshooting or updates regarding known issues.

By following these steps, you should be able to resolve the display problems with the Powerball app.