Hello,
I understand the issue you're facing with your ZenCart website regarding the "Whoops! Your session has expired" error after PayPal payments. This problem can often be caused by session or cookie settings.
I'm well-versed in ZenCart and can quickly diagnose and resolve this issue for you. I'll review your session and cookie settings, as well as your payment gateway configurations to pinpoint the problem.
Let's work together to ensure a seamless payment process for your customers. Please provide me with access to your website, and I'll get started right away.
Best regards,
Khorshed Alam