Fatal error: Uncaught ArgumentCountError: Too few arguments to function njengah_product_add_on_validation(), 3 passed in /home/customer/www/roflcakes.com/public_html/wp-includes/class-wp-hook.php on line 303 and exactly 4 expected in /home/customer/www/roflcakes.com/public_html/wp-content/themes/generatepress_child/functions.php:56 Stack trace: #0 /home/customer/www/roflcakes.com/public_html/wp-includes/class-wp-hook.php(303): njengah_product_add_on_validation(true, 126, 1) #1 /home/customer/www/roflcakes.com/public_html/wp-includes/plugin.php(189): WP_Hook->apply_filters(true, Array) #2 /home/customer/www/roflcakes.com/public_html/wp-content/plugins/woocommerce/includes/class-wc-form-handler.php(822): apply_filters('woocommerce_add...', true, 126, 1) #3 /home/customer/www/roflcakes.com/public_html/wp-content/plugins/woocommerce/includes/class-wc-form-handler.php(796): WC_Form_Handler::add_to_cart_handler_simple(126) #4 /home/customer/www/roflcakes.com/public_html/wp-includes/class-wp-hook.php(303): WC_Form_Handler::add_t in /home/customer/www/roflcakes.com/public_html/wp-content/themes/generatepress_child/functions.php on line 56