The server has been taken down, or the URL was changed. M3U links are often dynamic and expire every 24 hours to prevent piracy.
: Regional Asian channels alongside English, Hindi, and Tamil language options. How to Use an Astro M3U Link Astro M3u Link
This is the easiest way to test a link.
The Ultimate Guide to Astro M3U Links: Streaming Made Simple The server has been taken down, or the URL was changed