Getting Error with NULL Code and Message

Getting Error with NULL Code and Message

Hi Team,

We need to integrate Zoho recruit with our internal app.
So I have generated a AutToken from below mentioned url.
When I try to hit the api's from postman or ARC i am getting below error.

{
"response": {
"error": {
"code": "null",
"message": "null"
},
}
}

I am trying to hit below mentioned url from postman.

&newFormat=1&selectColumns=All&version=2

Also I tried both GET and POST method.

Could you please have a look and let me know whats the best way to access it.