Thank you for reaching out, I am sorry your PayPal gateway is not working for you.
I will need to gather some more information before I can look further into this for you. Is your customer receiving an error when checking out? Have you tried testing PayPal on your end? Can you share your URL, so I can test it on my end? Has PayPal worked on your store before? Once I have a bit more information, I will be able to help with the next steps.
Please let me know if you have any further questions! I would love to learn more about your business. What type of products do you sell?
Emily | Social Care @ Shopify - Was my reply helpful? Click Like to let me know! - Was your question answered? Mark it as an Accepted Solution - To learn more visit the Shopify Help Center or the Shopify Blog