Hi there! I understand you're having trouble with the PA Lottery Official App ticket checker not working on your iPhone with iOS 18.7. Let's work together to get this fixed.

To start off, could you tell me a bit more about the issue? For example:
- Does the ticket checker scan at all, or does it show an error or blank screen?
- Are you prompted to sign in repeatedly?
- Have you noticed if this happens whether you're on Wi-Fi or mobile data?

Meanwhile, here's a simple step-by-step that often helps with ticket scanning issues:

1. Check your internet connection: Make sure you're connected to a stable Wi-Fi or cellular network.

2. Close and reopen the app: Fully close the PA Lottery app (swipe it away from your app switcher) and then start it again.

3. Enable location services: The app sometimes needs your location to verify tickets correctly. Go to Settings > Privacy > Location Services, and ensure it's on for the PA Lottery app.

4. Update the app: Make sure you have the latest version of the app from the App Store.

5. Restart your iPhone: Sometimes a device reboot clears temporary glitches.

If this doesn't solve your problem, we could look deeper into issues like app permissions or connectivity settings. Also, occasionally server errors from the app side can cause scanning to fail—let me know if the problem persists after these steps.

Does this make sense so far? Could you try these and let me know what happens?