How to listen to the radio via a browser?

Hello,

Since I installed NextDNS, I can no longer listen to my favorite radio via Firefox or other.
Indeed, every time I try to load the page, I have a blank page. Another competing radio works normally.
I have whitelisted the domain name but nothing works.
Can anyone help me?
Here is the link of the radio in question: https://www.rtbf.be/radio/liveradio/vivacite
Thanks for your help.