PayPal payment details is not available

We are using S2Member since 2 years and frankly, it’s working perfectly. Since a few days, when someone click on out PayPal button to pay for an annual subscription, the user is redirected to PayPal, user must login but instead of having the details of the subscription, with price and pay now button from PayPal, the user get the usual Summary page from PayPal.

Any idea of what’s wrong?

No, but if PayPal is showing a different page and you haven’t changed anything on your site, something changed on PayPal. You should contact them and find out what changed.