Warning: Attempt to read property "quantity" on null in /opt/bitnami/opencart/extension/iktechpos/catalog/controller/module/iktechpos.php on line 20Warning: Attempt to read property "prices" on null in /opt/bitnami/opencart/extension/iktechpos/catalog/controller/module/iktechpos.php on line 23Warning: Trying to access array offset on value of type null in /opt/bitnami/opencart/extension/iktechpos/catalog/controller/module/iktechpos.php on line 23Warning: Attempt to read property "quantity" on null in /opt/bitnami/opencart/extension/iktechpos/catalog/controller/module/iktechpos.php on line 20Warning: Attempt to read property "prices" on null in /opt/bitnami/opencart/extension/iktechpos/catalog/controller/module/iktechpos.php on line 23Warning: Trying to access array offset on value of type null in /opt/bitnami/opencart/extension/iktechpos/catalog/controller/module/iktechpos.php on line 23Opencart\System\Library\Cart\Tax::calculate(): Argument #1 ($value) must be of type float, null given, called in /opt/bitnami/opencart/catalog/controller/product/product.php on line 319: in /opt/bitnami/opencart/system/library/cart/tax.php on line 107