If you see a notice similar to this:
Apple made a change to Safari 14 in September 2020, where it is no longer compatible with our audio player. Note that when you try to listen to our audios, the Safari browser (not us) automatically displays an Update Required note (above).
However, what that notice says is not correct. So, please ignore it and alternatively use Firefox (https://www.mozilla.org/en-US/) or Chrome (https://www.google.com/chrome/) as your browser.