Here's how to clear the app cache on an iPhone:

1. Go to the Settings app on your iPhone.
2. Scroll down and tap on "General."
3. Tap on "iPhone Storage."
4. Wait for the list of apps to load.
5. Find Honeyland and tap on it.
6. Tap "Offload App" to remove the app from your iPhone but keep its data.
7. Alternatively, tap "Delete App" to remove the app and its data from your iPhone.
8. Reinstall the app from the App Store to start with a fresh cache.

Note: Clearing the cache will log you out of the app and you may need to log in again.