paypal direct v3.9 now requires a Client ID and Client Secret

Hi, I have just migrated to v3.9 and my PP direct has stopped working as the API Username, API Password and Signature settings are no longer used.

The plugin requires a Client ID and Client Secret.

I have tried substituting Client ID = API Username and Client Secret = API Password but this does not work either.

Please help as I cannot process any CC payments.

So the problem seems to be that i did not have an App created in PayPal Developer. Which i have now done and received the credentials for sandbox and live. The problem now is that my Live credentials cannot process Direct Credit Card Payments due to Geo Restrictions of this service at this time with PayPal.