invalid client response

invalid client response

Hi. I'm trying to generate tokens and getting {"error": "invalid_client"} response. I'm using postman for requests. Making everything as in documentation but it doesn't work. What is wrong?
URL https://accounts.zoho.eu/oauth/v2/token
body :
grant_type: authorization_code
client_id: myId
client_secret: mySecret
redirect_url: someUrl
code: codeIgot