My PayPal is now plugged into Gumroad. I’m new to Gumroad, and I hadn’t realised that…

If you have not connected PayPal Connect, your customers will not be able to pay via PayPal.

So you should now be able to use PayPal when buying, or when kindly bumping up a price from a free “$0”. There’s not much there that’s paid, at present, but there will be.

Incidentally, if you signed up to Gumroad with a different email than you used for PayPal, be very careful to ensure you plug in the PayPal address. Don’t ever add a second different email address to your PayPal account, as it can lead to instant non-appealable account termination.