WooCommerce Payment Method doesn't show in Checkout Payment Block

Question

I recently created a plugin for customized payment platforms on WooCommerce, it seems to work in the back-end and I can activate this custom payment gateway from the settings, but it doesn't seem to show in WooCommerce checkout page (I am using Checkout Blocks).

Code:

<?php
/**
 * Plugin Name: Custom Plugin for Woocommerce Subscriptions + Xendit
 * Plugin URI: 
 * Author Name: Emmanuel John Navarro
 * Description: Plugin integration to create subscription based payments with automated integration to Xendit
 * Version 0.1.0
 * 
 * 
 */



add_action('plugins_loaded', 'woocommerce_xen_payment_init',00);

function woocommerce_xen_payment_init(){
    if(class_exists('WC_Payment_Gateway')){
        #[AllowDynamicProperties]
        class WC_xen_payment extends WC_Payment_Gateway{
            public function __construct() {
                $this->id = 'xen_payment';
                $this->icon = apply_filters('woocommerce_payment_icon', plugins_url() . '/assets/icon.png');
                $this->has_fields = false;
                $this->method_title = __('Credit Cards/E-Wallets','xen-pay-woo');
                $this->method_description = __('Pay Through Credit Cards or E-Wallets Through XENDIT, Personal Information will NOT be stored','xen-pay-woo');
            $this->title = $this->get_option( 'title' );
            $this->description = $this->get_option( 'description' );
            
            $this->instructions =  $this->get_option( 'instructions', $this->description );
            
            $this->init_form_fields();
            $this->init_settings();
        }
        public function init_form_fields(){
            $this->form_fields = apply_filters('xen_pay_fields',array(
                'enabled' => array(
                    'title' => __('Enable/Disable','xen-pay-woo'),
                    'type' =>'checkbox',
                    'label'=> __('Enable or Disable Payments','xen-pay-woo'),
                    'default'=>'no'
                ),
                'title' => array(
                    'title' => __('Payment Gateway Name','xen-pay-woo'),
                    'type' =>'text',
                    'default'=>__('Credit Cards/E-Wallets','xen-pay-woo'),
                    'desc_tip'=> true,
                    'description'=> __('Add a new title for the payment gateway that customers will see in the checkout page','xen-pay-woo')
                ),
                'description' => array(
                    'title' => __('Payment Gateway Description','xen-pay-woo'),
                    'type' =>'textarea',
                    'default'=>__('This gateway accepts VISA, MASTERCARD, ETC','xen-pay-woo'),
                    'desc_tip'=> true,
                    'description'=> __('Add a new description for the payment gateway that customers will see in the checkout page','xen-pay-woo')
                ),
                'instructions' => array(
                    'title' => __('Instructions','xen-pay-woo'),
                    'type' =>'textarea',
                    'default'=>__('Kindly check your account page and reload to contact your personal graphics manager. Thank you so much for choosing HelloGFX','xen-pay-woo'),
                    'desc_tip'=> true,
                    'description'=> __('Place a product description that will be shown after checkout on EMAIL and THANK YOU PAGE','xen-pay-woo')
                )
                
            ));
        }

        public function process_payment($order_id){
            $order_id = wc_get_order($order_id);

            $this->clear_payment_with_api();

            $order->update_status('pending-payment',  __('Awaiting Payments','xen-pay-woo'));

            $order->reduce_order_stock();
            
            WC()->cart->empty_cart();

            return array(
                'result'=>'success',
                'redirect'=>$this->get_return_url($order)
            );
        }
        public function clear_payment_with_api(){

        }
    }
}
}

add_filter('woocommerce_payment_gateways','add_to_woo_xen_payment');

function add_to_woo_xen_payment( $gateways ){
    $gateways[] = 'WC_xen_payment';
    return $gateways;
}

Kindly let me know if anyone has any idea why it won't show on the checkout page.