After selecting payment option its redirecting to cart page again

[Ravitejams]

Hi All,

I am facing the problem at checkout page, after selecting payment option as
paypal and clicking on continue button its redirecting to "cart" page
again.Getting error in console as "Failed to load resource:
net::ERR_BLOCKED_BY_CLIENT (http://paypal.adtag.where.com/merchant.js)" and i seleted configuration for Require
Customer's Billing Address as "NO" in paypal checkout configuration.