<br />
<b>Notice</b>:  require(): read of 6822 bytes failed with errno=12 Cannot allocate memory in <b>/home/tvsazfgs/public_html/wp-content/plugins/jetpack/vendor/jetpack-autoloader/class-php-autoloader.php</b> on line <b>90</b><br />
<br />
<b>Notice</b>:  require(): read of 6822 bytes failed with errno=12 Cannot allocate memory in <b>/home/tvsazfgs/public_html/wp-content/plugins/jetpack/vendor/jetpack-autoloader/class-php-autoloader.php</b> on line <b>90</b><br />
gMethods', $formatted_shipping_methods );
		}

		if ( $is_block_editor && ! $this->asset_data_registry->exists( 'activeShippingZones' ) && class_exists( '\WC_Shipping_Zones' ) ) {
			$shipping_zones             = \WC_Shipping_Zones::get_zones();
			$formatted_shipping_zones   = array_reduce(
				$shipping_zones,
				function( $acc, $zone ) {
					$acc[] = [
						'id'          => $zone['id'],
						'title'       => $zone['zone_name'],
						'description' => $zone['formatted_zone_location'],
					];
					return $acc;
				},
				[]
			);
			$formatted_shipping_zones[] = [
				'id'          => 0,
				'title'       => __( 'International', 'woocommerce' ),
				'description' => __( 'Locations outside all other zones', 'woocommerce' ),
			];
			$this->asset_data_registry->add( 'activeShippingZones', $formatted_shipping_zones );
		}

		if ( $is_block_editor && ! $this->asset_data_registry->exists( 'globalPaymentMethods' ) ) {
			// These are used to show options in the sidebar. We want to get the full list of enabled payment methods,
			// not just the ones that are available for the current cart (which may not exist yet).
			$payment_methods           = $this->get_enabled_payment_gateways();
			$formatted_payment_methods = array_reduce(
				$payment_methods,
				function( $acc, $method ) {
					$acc[] = [
						'id'          => $method->id,
						'title'       => $method->method_title,
						'description' => $method->method_description,
					];
					return $acc;
				},
				[]
			);
			$this->asset_data_registry->add( 'globalPaymentMethods', $formatted_payment_methods );
		}

		if ( ! is_admin() && ! WC()->is_rest_api_request() ) {
			$this->hydrate_from_api();
			$this->hydrate_customer_payment_methods();
		}

		/**
		 * Fires after checkout block data is registered.
		 *
		 * @since 2.6.0
		 */
		do_action( 'woocommerce_blocks_checkout_enqueue_data' );
	}

	/**
	 * Get payment methods that are enabled in settings.
	 *
	 * @return array
	 */
	protected function get_enabled_payment_gateways() {
		$payment_gateways = WC()->payment_gateways->payment_gateways();
		return array_filter(
			$payment_gateways,
			function( $payment_gateway ) {
				return 'yes' === $payment_gateway->enabled;
			}
		);
	}

	/**
	 * Are we currently on the admin block editor screen?
	 */
	protected function is_block_editor() {
		if ( ! is_admin() || ! function_exists( 'get_current_screen' ) ) {
			return false;
		}
		$screen = get_current_screen();

		return $screen && $screen->is_block_editor();
	}

	/**
	 * Get saved customer payment methods for use in checkout.
	 */
	protected function hydrate_customer_payment_methods() {
		if ( ! is_user_logged_in() || $this->asset_data_registry->exists( 'customerPaymentMethods' ) ) {
			return;
		}
		add_filter( 'woocommerce_payment_methods_list_item', [ $this, 'include_token_id_with_payment_methods' ], 10, 2 );

		$payment_gateways = $this->get_enabled_payment_gateways();
		$payment_methods  = wc_get_customer_saved_methods_list( get_current_user_id() );

		// Filter out payment methods that are not enabled.
		foreach ( $payment_methods as $payment_method_group => $saved_payment_methods ) {
			$payment_methods[ $payment_method_group ] = array_filter(
				$saved_payment_methods,
				function( $saved_payment_method ) use ( $payment_gateways ) {
					return in_array( $saved_payment_method['method']['gateway'], array_keys( $payment_gateways ), true );
				}
			);
		}

		$this->asset_data_registry->add(
			'customerPaymentMethods',
			$payment_methods
		);
		remove_filter( 'woocommerce_payment_methods_list_item', [ $this, 'include_token_id_with_payment_methods' ], 10, 2 );
	}

	/**
	 * Hydrate the checkout block with data from the API.
	 */
	protected function hydrate_from_api() {
		// Cache existing notices now, otherwise they are caught by the Cart Controller and converted to exceptions.
		$old_notices = WC()->session->get( 'wc_notices', array() );
		wc_clear_notices();

		$this->asset_data_registry->hydrate_api_request( '/wc/store/v1/cart' );

		add_filter( 'woocommerce_store_api_disable_nonce_check', '__return_true' );
		$rest_preload_api_requests = rest_preload_api_request( [], '/wc/store/v1/checkout' );
		$this->asset_data_registry->add( 'checkoutData', $rest_preload_api_requests['/wc/store/v1/checkout']['body'] ?? [] );
		remove_filter( 'woocommerce_store_api_disable_nonce_check', '__return_true' );

		// Restore notices.
		WC()->session->set( 'wc_notices', $old_notices );
	}

	/**
	 * Callback for woocommerce_payment_methods_list_item filter to add token id
	 * to the generated list.
	 *
	 * @param array     $list_item The current list item for the saved payment method.
	 * @param \WC_Token $token     The token for the current list item.
	 *
	 * @return array The list item with the token id added.
	 */
	public static function include_token_id_with_payment_methods( $list_item, $token ) {
		$list_item['tokenId'] = $token->get_id();
		$brand                = ! empty( $list_item['method']['brand'] ) ?
			strtolower( $list_item['method']['brand'] ) :
			'';
		// phpcs:ignore WordPress.WP.I18n.TextDomainMismatch -- need to match on translated value from core.
		if ( ! empty( $brand ) && esc_html__( 'Credit card', 'woocommerce' ) !== $brand ) {
			$list_item['method']['brand'] = wc_get_credit_card_type_label( $brand );
		}
		return $list_item;
	}
	/**
	 * Register script and style assets for the block type before it is registered.
	 *
	 * This registers the scripts; it does not enqueue them.
	 */
	protected function register_block_type_assets() {
		parent::register_block_type_assets();
		$chunks        = $this->get_chunks_paths( $this->chunks_folder );
		$vendor_chunks = $this->get_chunks_paths( 'vendors--checkout-blocks' );
		$shared_chunks = [ 'cart-blocks/cart-express-payment--checkout-blocks/express-payment-frontend' ];
		$this->register_chunk_translations( array_merge( $chunks, $vendor_chunks, $shared_chunks ) );
	}

	/**
	 * Get list of Checkout block & its inner-block types.
	 *
	 * @return array;
	 */
	public static function get_checkout_block_types() {
		return [
			'Checkout',
			'CheckoutActionsBlock',
			'CheckoutBillingAddressBlock',
			'CheckoutContactInformationBlock',
			'CheckoutExpressPaymentBlock',
			'CheckoutFieldsBlock',
			'CheckoutOrderNoteBlock',
			'CheckoutOrderSummaryBlock',
			'CheckoutOrderSummaryCartItemsBlock',
			'CheckoutOrderSummaryCouponFormBlock',
			'CheckoutOrderSummaryDiscountBlock',
			'CheckoutOrderSummaryFeeBlock',
			'CheckoutOrderSummaryShippingBlock',
			'CheckoutOrderSummarySubtotalBlock',
			'CheckoutOrderSummaryTaxesBlock',
			'CheckoutPaymentBlock',
			'CheckoutShippingAddressBlock',
			'CheckoutShippingMethodsBlock',
			'CheckoutShippingMethodBlock',
			'CheckoutPickupOptionsBlock',
			'CheckoutTermsBlock',
			'CheckoutTotalsBlock',
		];
	}
}
<br />
<b>Fatal error</b>:  Uncaught Error: Class 'Automattic\WooCommerce\Blocks\BlockTypes\Checkout' not found in /home/tvsazfgs/public_html/wp-content/plugins/woocommerce/packages/woocommerce-blocks/src/BlockTypesController.php:224
Stack trace:
#0 /home/tvsazfgs/public_html/wp-content/plugins/woocommerce/packages/woocommerce-blocks/src/BlockTypesController.php(61): Automattic\WooCommerce\Blocks\BlockTypesController-&gt;get_block_types()
#1 /home/tvsazfgs/public_html/wp-includes/class-wp-hook.php(310): Automattic\WooCommerce\Blocks\BlockTypesController-&gt;register_blocks('')
#2 /home/tvsazfgs/public_html/wp-includes/class-wp-hook.php(334): WP_Hook-&gt;apply_filters(NULL, Array)
#3 /home/tvsazfgs/public_html/wp-includes/plugin.php(517): WP_Hook-&gt;do_action(Array)
#4 /home/tvsazfgs/public_html/wp-settings.php(632): do_action('init')
#5 /home/tvsazfgs/public_html/wp-config.php(95): require_once('/home/tvsazfgs/...')
#6 /home/tvsazfgs/public_html/wp-load.php(50): require_once('/home/tvsazfgs/...')
#7 /home/tvsazfgs/public_html/wp-blog-header.php(13 in <b>/home/tvsazfgs/public_html/wp-content/plugins/woocommerce/packages/woocommerce-blocks/src/BlockTypesController.php</b> on line <b>224</b><br />