PayPal won't automatically redirect to my site

-- HikaShop version -- : 2.6.1
-- Joomla version -- : 3.4.3
-- PHP version -- : 5.6
-- Error-message(debug-mod must be tuned on) -- : Hi Team,
PayPal won't automatically redirect to my site after successful payment .

Hi Team,
Hope you are well. We are working one of our client site and PayPal won't automatically redirect to my site after successful payment . We need urgent help. Please check below site payment setting.

Thanks,
Masood

Hi,

It seems that the attached file is missing

To have the redirect, you need to fill the "return url" option and enable the "return method" one.
Please check that it is set correctly.