Video not found

I don't know if this is the proper section to post this kind of issues, but in the learning tracks for Zen I'm not able to play the second video (Caché Demo - Part 5 - Building a Rich Web Interface with InterSystems Zen) , the player show the following error message:

No video has been loaded

Error Code: PLAYER_ERR_NO_SRC

Learning Trak Link:

https://community.intersystems.com/learning-track/zen-videos