postURL - Error due to - 'Internal Exception'

Good day,

I created a function that makes a simple postURL call to our API without authentication.

It works using Postman but I get Error due to - 'Internal Exception' in Zoho

Here's my code :

HeaderMap = Map();

HeaderMap.put("content-type","application/x-www-form-urlencoded");

param = Map();

param.put("param","test");

result = postUrl(url,param,HeaderMap,false);

info result;