{ "error": "invalid_client" } while trying to get access token

{ "error": "invalid_client" } while trying to get access token

I have generate code and trying to generate access token like that: post https://accounts.zoho.com/oauth/v2/token?code=[censored]&grant_type=authorization_code&client_id=[censored]&client_secret=[censored]&redirect_uri=[censored], but always getting { "error": "invalid_client" }. Help me.

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