Fatal error: Uncaught Error: Class 'WC_Payment_Gateway' not found in /export/sd214/www/jp/r/e/gmoserver/5/9/sd0943359/okuda-store.com/wordpress-5.3.1-ja-jetpack_webfont-undernavicontrol/wp-content/plugins/woocommerce-for-japan/includes/gateways/bank-jp/class-wc-gateway-bank-jp.php:21 Stack trace: #0 /export/sd214/www/jp/r/e/gmoserver/5/9/sd0943359/okuda-store.com/wordpress-5.3.1-ja-jetpack_webfont-undernavicontrol/wp-content/plugins/woocommerce-for-japan/woocommerce-for-japan.php(145): require_once() #1 /export/sd214/www/jp/r/e/gmoserver/5/9/sd0943359/okuda-store.com/wordpress-5.3.1-ja-jetpack_webfont-undernavicontrol/wp-content/plugins/woocommerce-for-japan/woocommerce-for-japan.php(111): JP4WC->includes() #2 /export/sd214/www/jp/r/e/gmoserver/5/9/sd0943359/okuda-store.com/wordpress-5.3.1-ja-jetpack_webfont-undernavicontrol/wp-includes/class-wp-hook.php(287): JP4WC->on_plugins_loaded('') #3 /export/sd214/www/jp/r/e/gmoserver/5/9/sd0943359/okuda-store.com/wordpress-5.3.1-ja-jetpack_webfont-undernavicontrol/wp-includes/cla in /export/sd214/www/jp/r/e/gmoserver/5/9/sd0943359/okuda-store.com/wordpress-5.3.1-ja-jetpack_webfont-undernavicontrol/wp-content/plugins/woocommerce-for-japan/includes/gateways/bank-jp/class-wc-gateway-bank-jp.php on line 21