After making the credit card payment, page is blank

the link that it gets stuck on a blank page is:


http://mysite.com/stores/index.php?rout ... u/callback

payment gateway: payu

i tried with demo + live merchant and salt, the same problem arises. any suggestions?

The order too is not getting added in the open cart, however the payment does get processed!

Did you set the 'return to the shop' Langing Page - Link, possibly at the Payment Gate User-Admin Section, to have a valid url, to come back to, after everything is done well?
Ernie
ipc.li/shop/