The stream will not more play in Google Chrome 80+
As of Google Chrome 80, mixed content is no longer supported. If the stream is without SSL and the website is with SSL, the stream will no longer be played. Other browsers follow the example of Google. The solution is to set the stream to SSL.
More you can read here: https://blog.chromium.org/2019/10/no-more-mixed-messages-about-https.html
And please read the troubleshooting in the documentation: