Invalid username/password

Hi,

The plugin doesn’t recognize username or password.
I can login to sendgrid.com no problem using my credentials.
But when trying to save settings in WP plugin I’m getting “Invalid username/password” error.

Problem seems to be with your API because it returns
https://sendgrid.com/api/profile.get.json?api_user=username&api_key=password

returns this json no matter what

{
    error: {
        code: 401,
        message: "Permission denied, wrong credentials"
    }
}

Cheers

https://www.ads-software.com/plugins/sendgrid-email-delivery-simplified/