Error trying to receive access_token

Bitbucket Development Bitbucket Cloud
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1

I am trying to get an access token through OAuth2.0 but everytime I try to do it, I just receive the error below.

Error:: “Cannot use client_credentials with a consumer marked as “public”. Calls for auto generated consumers should use urn:bitbucket:oauth2:jwt instead.”, “error”: “invalid_grant”}

I am trying to send a POST request through HTTPClient but I am not sure what I am doing wrong here.

Code below:

private static async Task<Token> GetEligibleToken()
 {
 var client = new HttpClient();
 string baseAddress = "https://bitbucket.org/site/oauth2/access_token";

 string grant_type = "client_credentials";
 string client_id = "id";
 string client_secret = "secret";

 var form = new Dictionary<string, string>
  {
    {"grant_type", grant_type},
    {"client_id", client_id},
    {"client_secret", client_secret},
  };

 HttpResponseMessage tokenResponse = await client.PostAsync(baseAddress, new FormUrlEncodedContent(form));
 var jsonContent = await tokenResponse.Content.ReadAsStringAsync();
 Token tok = JsonConvert.DeserializeObject<Token>(jsonContent);
 Console.WriteLine(tok);
 return tok;
}