coupon

-- HikaShop version -- : HikaShop Business 3.2.1 [1710301421]
-- Joomla version -- : 3.7.5
-- Error-message(debug-mod must be tuned on) -- : no error just blank page

when you enter coupon, and click "add" it just returns a blank page and nothing happens.

Hello,

If you're still having that issue, note that a blank page only means that an error occurred but can't be displayed because the Joomla debug mode and Error reporting are disabled, can you :
- Activate the Joomla debug mode ("Administration->Global configuration->System->Debug System/Language")
- Set the "error reporting" option of the Joomla configuration to "maximum"
- Test it again so that you can see if it display an error message which will help you to understand from what your issue is coming.

Thank you.