Fortnite Power Rankings API seems to be down

[nalane]

Hi,
I'm trying to use the Fortnite API, but when I click the "Try it out" button on your site and then make a request, the result is the following error:

{"message":"No API key found in request"}

But I can see in the inspector that the TRN-Api-Key field is set, and it's set properly.

When I instead try to use curl to make the request with the following command:

curl --header "TRN-Api-Key: {keeping this hidden}" https://api.fortnitetracker.com/v1/powerrankings/pc/NAE/Ninja

I get the following response:

{
  "status": "Try again in a few minutes. PR is updating"
}

Now, I've waited several days, and I'm still getting that error. Am I doing something wrong, or is the service down?