Fatal error: Uncaught Error: Class 'WC_Product' not found in /data/web/virtuals/214847/virtual/www/domains/kralvitamin.cz/wp-content/plugins/woocommerce-boost-sales/includes/wbs_product_bundle.php:17 Stack trace: #0 /data/web/virtuals/214847/virtual/www/domains/kralvitamin.cz/wp-content/plugins/woocommerce-boost-sales/admin/bundles.php(101): require_once() #1 /data/web/virtuals/214847/virtual/www/domains/kralvitamin.cz/wp-includes/class-wp-hook.php(288): VI_WBOOSTSALES_Admin_Bundles->register_wbs_bundle_product_type('') #2 /data/web/virtuals/214847/virtual/www/domains/kralvitamin.cz/wp-includes/class-wp-hook.php(312): WP_Hook->apply_filters(NULL, Array) #3 /data/web/virtuals/214847/virtual/www/domains/kralvitamin.cz/wp-includes/plugin.php(478): WP_Hook->do_action(Array) #4 /data/web/virtuals/214847/virtual/www/domains/kralvitamin.cz/wp-settings.php(392): do_action('plugins_loaded') #5 /data/web/virtuals/214847/virtual/www/domains/kralvitamin.cz/wp-config.php(101): require_once('/data/web/virtu...') #6 /data/web/virtuals/2 in /data/web/virtuals/214847/virtual/www/domains/kralvitamin.cz/wp-content/plugins/woocommerce-boost-sales/includes/wbs_product_bundle.php on line 17