Hello! I understand that you're having trouble with videos loading on the 90 Day Challenge. Let's figure this out together.

1. Check Your Internet Connection: Ensure that your internet connection is stable. You can try loading another webpage or streaming a video from a different site to see if it works.

2. Refresh the Page: Sometimes a simple page refresh can help. You can do this by pressing F5 on your keyboard or clicking the refresh button in your browser.

3. Clear Browser Cache: Cached data can sometimes cause issues. Here’s how to clear your cache in WebKit on Windows:
- Open your browser.
- Go to the settings or preferences menu.
- Find the option for 'Privacy' or 'Clear Browsing Data'.
- Select 'Cached Images and Files', then click on 'Clear Data'.

4. Try Another Browser: If clearing the cache doesn't work, it might help to try accessing the site using a different browser. If you're using WebKit, you might consider switching to something like Chrome or Firefox temporarily.

5. Disable Any Browser Extensions: Extensions can sometimes interfere with video playback. Try disabling them to see if that resolves the issue.

6. Restart Your Device: If all else fails, reboot your computer. This can often clear up lingering issues with applications and network connections.

If you’ve tried any of these steps already, let me know, and we can dive deeper into other alternatives! Are you satisfied with the solutions I provided so far?