Erro 400

Estou tendo retorno 400

16/09/25 20:09:52:794 -03:00 - Body Resposta (payload):{"brn":"brn:btg🆔oidc:errors:token-issue-error","correlationId":"63abf137-4c5a-4cce-9e53-9bbf12065935","message":"[A157304] The client authentication method is 'client_secret_basic' but the request does not include a client secret.","name":"TokenIssueError","errorType":"invalid-client"}

16/09/25 20:13:01:886 -03:00 - Autenticando Token...
16/09/25 20:13:01:889 -03:00 - Autenticando Token...
16/09/25 20:13:01:903 -03:00 - Comando Enviar: TOAuth
16/09/25 20:13:01:910 -03:00 - Header Envio:Authorization: Basic MWIyZmIzYWQtZTZjYi00ZmI4LWE3NWYtNjg1NDNkZTMzNzc0Og==

16/09/25 20:13:01:919 -03:00 - URL: [POST] https://id.btgpactual.com/oauth2/token
16/09/25 20:13:01:930 -03:00 - Body Envio

16/09/25 20:13:02:150 -03:00 - Erro: HTTP_Code=400 Erro=