First you need to allow the plugin to start receiving payments from your clients. Just click on the Settings tab and make sure the Booking Type option is set to “Paid Bookings”.
Thank, click on Payment Gateways link, then scroll down to the PayPal section.
At the right side you will see the Payment Gateways options. Click on Activate Paypal checkbox, then set your PayPal email account.
IMPORTANT: Please make sure you set the right currency.