Hi,
I have an identical configuration than yours and I cannot reproduce the issue ; which is strange.
In order to be sure, I wrote a patch which should avoid the problem for what I suspect.
In the file "administrator/components/com_hikamarket/classes/cart.php" please replace
if(!empty($cartContent)) {
foreach($cartContent as $p) {
$v = (int)$p->product_vendor_id;
By
if(!empty($cartContent)) {
foreach($cartContent as $p) {
if((int)$p->cart_product_quantity == 0)
continue;
$v = (int)$p->product_vendor_id;
if($v == 0 && $p->product_type == 'variant' && isset($cartContent[ (int)$p->cart_product_parent_id ])) {
$v = (int)$cartContent[ (int)$p->cart_product_parent_id ]->product_vendor_id;
}
And please confirm me if it fixs the issue so I could include that patch in HikaMarket 1.7.0 (because the automatic update is launched).
Regards,