Hello! It sounds like you're facing an issue with the display of various elements in Fairyland, where certain boxes and rewards appear black and are not accessible. Let's work together to troubleshoot this.

First, can you let me know if this issue occurs on a specific device or if it’s happening across multiple devices? Additionally, have you recently updated the game or made any changes to your settings?

Here are a few general steps that might help resolve the issue:

1. Clear Browser Cache: Sometimes cached data can cause display issues. You can try clearing the cache in your WebKit browser:
- Open your WebKit browser.
- Go to Settings > Privacy > Clear Browsing Data.
- Make sure to select "Cached images and files" and then clear the data.

2. Disable Extensions: Any browser extensions could potentially interfere with the display:
- Go to Settings > Extensions or Add-ons.
- Disable any active extensions temporarily and see if that resolves the issue.

3. Check Browser Compatibility: Ensure your browser version is up to date. Sometimes older versions can cause display problems on newer websites or applications.

4. Adjust Graphics Settings: If you have any graphics settings within the game, you might want to lower them to see if that resolves the sealing issue.

5. Restart the Device: Simply restarting your computer can sometimes fix temporary glitches.

If the problem persists after these steps, we may need to look deeper into account settings or possible glitches on the server side. Please let me know how it goes and if you need further assistance!