Empty Shopping Cart Error When Checking Out with PayPal by Tips and Tricks HQ Support Portal › Forums › WP eStore Forum › WP eStore Troubleshooting › Empty Shopping Cart Error When Checking Out with PayPal Tagged: back, button, cart, checkout, clears, empty cart, PayPal, PHP Session, return This topic has 13 replies, 7 voices, and was last updated 13 years, 2 months ago by admin. You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In