[SOLVED] Can't complete with Paypal Payment

Hi,

When I click pay from shopping cart, I am redirected to a page with json data as follows in my local machine

{“message”:{“payment_url”:null,“creation”:“2016-06-01 09:00:58.930041”,“doctype”:“Payment Request”,“currency”:“SAR”,“owner”:“Administrator”,“message”:“Please click on the link below to make your payment”,“subject”:“Payment Request for SO-00001”,“reference_doctype”:“Sales Order”,“modified_by”:“Administrator”,“amended_from”:null,“docstatus”:1,“status”:“Draft”,
“parent”:null,“reference_name”:“SO-00001”,“mute_email”:1,“email_to”:"",“payment_gateway_account”:“Paypal - SAR”,
“payment_account”:“Paypal - P”,“print_format”:null,“grand_total”:465.0,“name”:“PR000001”,“idx”:0,
“modified”:“2016-06-01 09:00:58.983042”,“parenttype”:null,“make_sales_invoice”:1,
“payment_url_message”:“Click here to make a payment”,“payment_gateway”:“Paypal”,“parentfield”:null}}

Why am I getting this? and what is the expected page?
How can I make it work?

@ninjas005 how did you solve it? Can you also please post the solution.

The Payment Gateway method created was given name Paypal in Accounts > Payment Gateway.it shold be PayPal