Hello,
I am not familiar with eWay. Out of the box, I do not see eWay as a Payment option in Magento 1x or 2x. I did a quick search on Magento Connect and I do see extensions built for that Payment Gateway. Have you talked to one of those extension providers to help resolve your issue?
If you have questions about how to configure PayPal or have PayPal related issues, we may be able to help you in this forum.
Thank,
PayPal Support