title: I can't pay with Paypal through WooCommerce
body: <p>When I check out the products I wish to purchase from my store it directs me to Paypal's page and I need to log in to my paypal account in order to purchase the items. However, every time I try logging in it says "Please check your email address and password and try again" which is very concerning since it works when I log in through Paypal's website. I'm so confused and started searching for answers online and I found out I might have to use IPN or API.. all those stuff and I have no clue what is going on... please help!</p>