Shoot, sorry you are having this problem and thanks for trying to support Bike. I “think” this must be on Paddle end, I don’t think I’ve changed anything on my end for some time.
It may be desktop safari specific, the PayPal link seems to work in Firefox and the Apple Pay link at least seems to be working in iOS safari. I won’t have a chance to actually make the purchase till later today but hopefully that might help narrow down whatever’s happening.