Notice: id was called incorrectly. Product properties should not be accessed directly. Backtrace: require('wp-blog-header.php'), require_once('wp-includes/template-loader.php'), include('/themes/hotelcalifornia/woocommerce.php'), woocommerce_content, wc_get_template_part, load_template, require('/themes/hotelcalifornia/woocommerce/content-single-product.php'), do_action('woocommerce_after_single_product_summary'), WP_Hook->do_action, WP_Hook->apply_filters, call_user_func_array, woocommerce_upsell_display, wc_get_template, include('/themes/hotelcalifornia/woocommerce/single-product/up-sells.php'), WC_Abstract_Legacy_Product->__get, wc_doing_it_wrong Please see Debugging in WordPress for more information. (This message was added in version 3.0.) in /home/radem293/public_html/hotel/wp-includes/functions.php on line 4667