Cart cannot be loaded or an order has already been placed using this cart.

[HARI DUDDELA]

Hi,

 

I installed Prestashop 1.6 and installed Payu (India) payment gateway. Payment gateway has been configured and upon creating a test transaction>making a payment, i am encountering following error:

Cart cannot be loaded or an order has already been placed using this cart.

 

I am using Payumoney India payment gateway and i am not using multstore.

 

Flow:
Add item to Cart>Checkout>Select Payu Gateway>Enter Credit Card details>Payment Processed>Redirection to my website and this is when i get above error message. No order # is generated in my prestashop.

 

Anyone help me to rectify this problem

 

 

Thanks in advance