The latest update of Chrome (version 80.0) now blocks mixed content, which causes the player to fail loading audio on a https page.
Here the official Google statement: "In Chrome 80, mixed audio and video resources will be autoupgraded to https://, and Chrome will block them by default if they fail to load over https://. Chrome 80 will be released to early release channels in January 2020. Users can unblock affected audio and video resources with the setting described above."
Source: https://blog.chromium.org/2019/10/no-more-mixed-messages-about-https.html
No worries, we have you covered, you can use our free https proxy. To do so, simply go to the console, and navigate to Listen > Player and enable the https option. For more details: https://help.cloudrad.io/s/article/player-https-proxy
This option is even available for our customers using our free player without hosting their radio with us. Note that it's provided on a best effort basis and that we might restrict its usage at any time.