Error getting OAuth Authorization Code

Hi Team,

We are getting error while generating OAuth Authorization Code as per Attachment ( Error_Khoros_OAuth2_Auth_Code.jpg)

Any suggestion to resolved issue ?

https://xxxxxxxxxxxxxxxx.lithium.com/auth/oauth2/authorize?client_id=xxxxxxxxxxxx=&response_type=code&redirect_uri=xxxxxxxxxx&state=xxxxxxxxxxxxx

I’m using process desceipr in Khoros docs:  OAuth 2.0 authorization grant flow:  https://developer.khoros.com/khoroscommunitydevdocs/docs/oauth-authorization-grant