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(1/1) ContextErrorException

Warning: Declaration of Cart::getPackageShippingCost($id_carrier = NULL, $use_tax = true, ?Country $default_country = NULL, $product_list = NULL, $id_zone = NULL) should be compatible with CartCore::getPackageShippingCost($id_carrier = NULL, $use_tax = true, ?Country $default_country = NULL, $product_list = NULL, $id_zone = NULL, bool $keepOrderPrices = false)

in Cart.php line 17
at ErrorHandler->handleError(2, 'Declaration of Cart::getPackageShippingCost($id_carrier = NULL, $use_tax = true, ?Country $default_country = NULL, $product_list = NULL, $id_zone = NULL) should be compatible with CartCore::getPackageShippingCost($id_carrier = NULL, $use_tax = true, ?Country $default_country = NULL, $product_list = NULL, $id_zone = NULL, bool $keepOrderPrices = false)', '/home/lizncneg/domini/benesserefaidate.com/override/classes/Cart.php', 17, array('className' => 'Cart', 'classDir' => '/home/lizncneg/domini/benesserefaidate.com/'))in PrestaShopAutoload.php line 152
at require_once()in PrestaShopAutoload.php line 152
at PrestaShopAutoload->load('Cart')in DebugClassLoader.php line 159
at DebugClassLoader->loadClass('Cart')
at spl_autoload_call('Cart')in FrontController.php line 443
at FrontControllerCore->init()in Controller.php line 287
at ControllerCore->run()in Dispatcher.php line 518
at DispatcherCore->dispatch()in index.php line 28