I've fixed the YouTube playback error by adding comprehensive error handling and fallback options. The player now detects when YouTube videos are restricted from embedding and shows a helpful error message with an option to open the video directly in YouTube. This handles the common issue where certain videos cannot be played in embedded players due to copyright or regional restrictions.

I've added Page Visibility API support to prevent the music from stopping when the browser is minimized. The player now continues running in the background and maintains playback state even when the tab or window is not visible. The YouTube player parameters have been optimized for background playback, and the time tracking continues to work properly when minimized.