Typically, this is because the course hasn't been uploaded to the SCORMCloud application Bright is associated with.
You can list your SCORMCloud applications here:
SCORMCloud is designed to allow API integration only with the applications listed on this page. But note, when uploading courses, SCORMCloud defaults to the internal application just called "SCORMCloud". That's a problem, because this default application isn't generally available via the API.