I am still working in the PayPal sandbox.
I have had to comment out the "repeating donations" code. That is the only code change I have made.
Repeating Donations brings the donor to the wrong PayPal landing page. Rather than the PayPal/CC page that Seamless Donations normally lands on, it is a straight PayPal payment page, with link for CC payments. When that link is clicked, it goes to an invalid PayPal page.
I have seen nobody else have this problem, and this change was made some time ago, so it's a bit puzzling. Can you help?