Hi,
Please edit the HikaShop plugin "plugins/hikashop/shippingmanual_prices/shippingmanual_prices.php" and replace
	function onAfterProductCreate(&$product) {
		return $this->onAfterProductUpdate($product);
	}By
	function onAfterProductCreate(&$product) {
		return $this->onAfterProductUpdate($product, true);
	}
And
function onAfterProductUpdate(&$product) {By
function onAfterProductUpdate(&$product, $create = false) {
And also
		if(!$app->isAdmin()) {
			if(isset($formData[$product->product_id]))
				$formData = $formData[$product->product_id];
			else
				$formData = array();
		}By
		if(!$app->isAdmin()) {
			if(isset($formData[$product->product_id]))
				$formData = $formData[$product->product_id];
			else if(isset($formData[0]) && $create)
				$formData = $formData[0];
			else
				$formData = array();
		}
It should fix the problem in HikaMarket.
Regards,