I am trying auth code flow and I got "Login error Error: Authorization code was not issued for this application" although the app is browser-based so the auth code flow should work.

However, I was still getting some code as you can see so I tried to get access token with it but I got

{

  "error" : "invalid_grant",

  "errors" : [ {

    "errorCode" : "OAU-108",

    "message" : "Authorization code is expired"

  } ],

  "error_description" : "Authorization code is expired"

}

What should I do?