Hello, can you please add support for that site? That would be sweet! Thanks!
Yatse rely on YT DLP to cast web site and it seems it’s already supported (if not working you need to report to them : GitHub - yt-dlp/yt-dlp: A youtube-dl fork with additional features and fixes)
See How to install and configure Yatse Add-on for Kodi for how to install Yatse addon.