Hi there! I understand your Kroger app is frozen on an ad page on your iPhone running iOS 18.6. Let’s work through some steps to get it back to normal.

Here’s what I suggest trying first:

1. Force close the app:
- Swipe up from the bottom of your screen and pause to bring up the app switcher.
- Find the Kroger app preview and swipe it up off the screen to close it completely.
- Then reopen the app to see if it loads past the ad page.

2. Clear any app cache or temporary data (within the app if settings allow):
Some apps allow clearing cache in their settings menu. If the Kroger app has that option, give it a try.

3. Check for app updates:
- Open the App Store, go to your account, and scroll to see available updates.
- Update the Kroger app if there's a newer version. Updates often fix bugs like loading issues.

4. Restart your iPhone:
Sometimes a simple restart can clear minor glitches.

5. Reinstall the app:
If the problem persists, uninstall the Kroger app and reinstall it from the App Store. This often resolves issues caused by corrupted files.

If you’ve tried any of these steps already, please let me know so I can suggest the next steps. Sometimes, ad loading can be affected by network issues, so we might also look into your Wi-Fi or cellular connection if needed.

Are you able to try these and tell me how it goes?