Glitch when trying to purchase on adobe express via zazzle. No matter what card is used even with funds available it says “cart expired” or says “error”

When I’ve tried to make a purchase via adobe express from work done like “front and back” flyer for example it just glitches when trying to pay and says “cart expired” and no matter what card I try to use that has available funds with all the information typed in correctly aligning with billing address it still seems to not let me purchase.