Got error when processing order refund

Hi,

because the hired customized feature has been overwrite by update and paid pro version, I have rolled back to v2.2 and got error when processing order refund.

Fatal error: Uncaught Error: Call to undefined method Automattic\WooCommerce\Admin\Overrides\OrderRefund::get_order_id()
in \wp-content\plugins\wc-partial-shipment\woocommerce-partial-shipment.php on line 179

Call stack:

WXP_Partial_Shipment::wxp_order_item_values()
wp-includes/class-wp-hook.php:292
WP_Hook::apply_filters()
wp-includes/class-wp-hook.php:316
WP_Hook::do_action()
wp-includes/plugin.php:484
do_action()
wp-content/plugins/woocommerce/includes/admin/meta-boxes/views/html-order-refund.php:50
include()
wp-content/plugins/woocommerce/includes/admin/meta-boxes/views/html-order-items.php:92
include()
wp-content/plugins/woocommerce/includes/admin/meta-boxes/class-wc-meta-box-order-items.php:41
WC_Meta_Box_Order_Items::output()
wp-admin/includes/template.php:1389
do_meta_boxes()
wp-admin/edit-form-advanced.php:688
require()
wp-admin/post.php:206

Please help, thanks