If you're receiving this error and have verified that your PayPal API permissions are correct, you may need to confirm your email address with PayPal.

To confirm your email address with PayPal:

1. Sign in to your PayPal account.
2. Under the "My Account" tab, click the "Profile" link.
3. Click the "Email" link, located in the Account Settings column.
4. If your email address has not been confirmed, it will be marked as "Unconfirmed." Select this email address, and click the "Confirm" button.

A confirmation email will be sent from PayPal to the selected email address. Click the confirmation link contained in this email. You will be taken to a confirmation page on PayPal's web site and prompted to enter your PayPal account password to confirm your email address.