Product variants with a % price of main product

-- HikaShop version -- : 2.4.0
-- Joomla version -- : 3.4
-- Error-message(debug-mod must be tuned on) -- : Notice: Undefined property: stdClass::$tax_amount in C:\xampp\htdocs\xxx\administrator\components\com_hikashop\classes\product.php on line 1513

Just for fun I defined a product variant.

When I leave the price at 0 and define 120% instead, this error occurs when product is displayed.

Hi,

Thanks for the report, to correct it on your end, you can edit the file as indicated in the error and at the line 1513 add "@" before "$tax->tax_amount".