I have an UnAuthenticated Connection

Hello,

I work on Zoho Deluge to create an automatic program, and to discover Deluge, I test program.

I want to get data from Zoho and I use this code bellow :

response = invokeurl

[

url :"https://www.zohoapis.com/crm/v2/Participants"

type :GET

connection:"disconnect_user"

];

info response;

But when I execute this program I've an UnAuthenticated Connection error.
So I think the problem it's about the disconnect_user because I don't arrive to start le connection.
My value in the connection are good because I use this to get my token with postman.
So I conclude the problem is link with the authorization url, but I don't know how to resolve.
Thanks for your response