Hi there! It sounds like you're experiencing a bit of a hiccup with the Cake Sort app. I understand that it's still showing the Christmas theme, while the App Store is advertising the St. Patrick's Day event. Let’s troubleshoot this together!

1. Check for Updates:
- First, let's ensure that you have the latest version of the app. Open the App Store, tap on your profile icon in the top right corner, and scroll down to see pending updates. If Cake Sort appears, tap "Update."

2. Restart the App:
- Sometimes, simply closing the app and reopening it can resolve display issues. Make sure to completely close it by swiping it away from your recent apps, then restart the app.

3. Restart Your iPhone:
- If that doesn’t help, try restarting your iPhone. Press and hold the power button until you see "slide to power off,” then wait a few seconds and turn it back on.

4. Check App Settings:
- Open Cake Sort and check for any in-app settings that might adjust the theme or events. Sometimes, event features can be toggled within the app.

5. Reinstall the App:
- As a final step, if it’s still showing the Christmas event, it might help to delete the app and reinstall it. Make sure your game data is backed up or linked to an account if possible! You can delete the app by holding its icon until it wiggles and tapping the "X." Then, reinstall it from the App Store.

If these steps don't bring the St. Patrick's Day event to your app, there may be a specific issue with the iOS version or device compatibility. Please let me know how it goes, and if you still face issues, we can explore further options or reach out to Cake Sort support directly. Are you satisfied with the solutions I provided?