Hi there -- trying to set up Paypal payment checkouts for the Membership 2. Everything seems fine but when I try to log into a PayPal account to complete payment, it returns three errors at random: 1) a page with nothing the but the words FATAL ERROR, 2) a page with a ton of garbled code, and 3) the most common, it tells you that the email / pass combo you put in to pay isn't valid -- which of course it is, since it's an outside paypal account. (Paypal is set to sandbox within the plugin for testing purposes)
What could be going on? Thanks for your help.