Alteryx Free Agent API Error

Hi Everyone,

I am having trouble getting the Access Token/Refresh Token using Alteryx. I
get the following error message: HTTP·Basic:·Access·denied.

HTTP/1.1 401 Unauthorized

Server: nginx

Content-Type: text/html; charset=utf-8

Transfer-Encoding: chunked

Connection: keep-alive

WWW-Authenticate: Basic realm=“Application”

Cache-Control: no-cache

X-Request-Id:xxxxxxxxxxxxxxxxxxxxxxxx

X-Rev: xxxxxxxxxxx

X-Host: xxxxxxxxxxxxxxx

X-Runtime: xxxxxxxxxxxxxxxxxx

X-Frame-Options: SAMEORIGIN

Vary: Origin

I have attached screenshots. Anyone any ideas where the problem might lie.

Thank you.

Greetings,

Jun-Seo