Zoom authorize api not working

Hi
I am developing the website in php frame work.
I have the functionality where user authorize there zoom account and can create meetings into it.
i have created the oauth app into my zoom account and copied the secret and token into my website.
Now when i call the api for the zoom authorization it gives error “Oops! We were unable to complete your request. Please try again. (4,700)”

What is the reason?

Error?
Oops! We were unable to complete your request. Please try again. (4,700)

How To Reproduce
Steps to reproduce the behavior:
*1. Request URL / Headers Api call url
Sign In - Zoom

Hi @wellnesys
Thanks for reaching out to the Zoom Developer Forum, I am happy to help here!
If you are working with an OAuth app and want to make API calls to our endpoints, here is a sample app that demonstrates how to implement OAuth and how to make your first API call

Hope this helps,
Elisa