Hi there! It sounds like Little Farm Story is closing or "going off" on you earlier than you'd like. I want to make sure I understand fully—are you experiencing the game crashing unexpectedly, or is it more like the app is closing when you try to exit or switch tasks? Also, when does this happen—immediately after launching, during gameplay, or at specific points?

Meanwhile, here are some initial troubleshooting steps tailored for your iPhone running iOS 18.5:

1. Check for App Updates: Go to the App Store, tap your profile icon, and scroll to see if there's an update available for Little Farm Story. Updates often fix bugs that cause crashes.

2. Restart Your iPhone: Sometimes a simple restart clears temporary glitches. Press and hold the side button and volume button until you see the slider, then slide to power off. After it’s off, turn it back on.

3. Close Background Apps: Double-click your Home button or swipe up on devices without a Home button to see recent apps. Swipe away other apps to free up memory.

4. Clear App Cache/Data: Though iOS apps don't give direct cache clear options, you can delete the app and reinstall it to clear temporary data. Back up your game data first if you can (via Game Center or in-app save).

5. Check for iOS Updates: You mentioned iOS 18.5, which is recent, but verify if any minor updates or patches are available under Settings > General > Software Update.

6. Ensure Stable Internet: A shaky network can sometimes cause app crashes if the game requires constant online connection.

If you’ve already tried these, please let me know what you've done and any error messages or specific behaviors you notice. That way, I can guide you through more advanced steps or check if there's a known issue affecting users recently.

Are you available to try these out now?