Anyone know why radio stations dont work?

[AK4K-Coding]

Every time i try to do a radio for a .json. or a link, it doesnt work. Ive read things, ive asked people on Twitter, and I asked ai. Ive tried, but it just gives errors saying the location doesnt exist (which it 100% does) and ive tried to look it up alot, and I can't find out how to do it. I'm on linux flatpak