Hello! I understand you're experiencing issues with videos buffering and not playing in Zen Word. Let’s try to get this sorted out.

First, I’d like to gather a bit more information to help diagnose the problem. Are you experiencing this issue across all videos, or is it specific to certain ones? Also, have you noticed if the buffering happens more on certain networks (like Wi-Fi versus mobile data)?

In the meantime, here are some steps you can try to resolve buffering issues:

1. Restart Your Device: Sometimes, simply restarting your ChromeOS device can clear any temporary issues that might be causing buffering.

2. Check Your Internet Connection: Ensure that your internet connection is stable and fast enough to stream videos. You can run an internet speed test to confirm that your connection is optimal.

3. Clear Browser Cache:
- Open your Chrome browser.
- Go to Settings > Privacy and security > Clear browsing data.
- Make sure "Cached images and files" is checked, then clear the data. This can help resolve playback issues by clearing out old data.

4. Adjust Video Quality Settings: If available, try lowering the video quality in the settings of the video player. Sometimes, high-quality settings can lead to buffering if your connection isn’t strong enough.

5. Update Browser: Make sure that your Chrome browser is updated to the latest version. Sometimes updates can fix bugs causing playback issues.

Please let me know how it goes with these steps or if there's anything else you’d like to share that might help isolate the issue! Are you satisfied with the solution I provided?