question

Hi I am getting 500 internal server error when requesting access token for login with amazon feature. I am using postman to POST this request. Below is the curl command :

https://api.amazon.com/auth/o2/token?grant_type=Authorization_code&code=ANmCVTZCsMlBFMqWXTVM&redirect_uri=https://webhook.site/fef62e32-4b3f-4199-8bb1-244a4358c519

I can provide Client ID value if required. Can someone please help me out ?