Unauthorized payment error when using the live API

[deneektolentino]

Hello,
We have used this package to create our "pay by credit card" payment method we have completed testing with the sandbox and migrated it into dev, however upon using it in live - using live API credentials, it errors having an unauthorized payment:

under account permissions, we saw that direct credit cards is not enabled.

we have been following this guide:
https://developer.paypal.com/webapps/developer/docs/classic/lifecycle/goingLive/
to enable the live credit card payments

in one of the steps there is something about getting the live API credentials
Obtain your live API credentials as follows:

Log into the PayPal website with the account associated with your application or website.
Navigate to My Selling Tools by selecting My Account > Profile > My Selling Tools.
Click Selling Online > API Access > Update to display the API Access page.
Under Option 2, click View API Signature to view the Request API Credentials page. If you have existing credentials, they are displayed here.
To create new credentials, select Request API Signature and click Agree and Submit.

but it has a different format that of the one in the config on this package.