JQUERY Getting JSON Data from URL

Question

I am trying to use $.getJSON() to get JSON data from websites. Below is the code I am using

the website I am trying to get the JSON data.

this code worked perfectly fine when querying data, but it does not work for the first link.. Why is this?

<script>
$.getJSON('https://example.com/coins/4.json', function(data) {

    var text = `Rewards: ${data.estimated_rewards}`


    $(".mypanel").html(text);
});
</script>