Error when changing currency in administrative panel

Fatal error: Uncaught Error: Call to a member function get_id() on bool in /home/customer/www/unioncambios.com/public_html/1/wp-content/plugins/woocommerce-multi-currency/admin/order.php:443 Stack trace: #0 /home/customer/www/unioncambios.com/public_html/1/wp-includes/class-wp-hook.php(308): WOOMULTI_CURRENCY_Admin_Order->save_order_item(Object(WC_Order_Item_Product)) #1 /home/customer/www/unioncambios.com/public_html/1/wp-includes/class-wp-hook.php(332): WP_Hook->apply_filters(”, Array) #2 /home/customer/www/unioncambios.com/public_html/1/wp-includes/plugin.php(517): WP_Hook->do_action(Array) #3 /home/customer/www/unioncambios.com/public_html/1/wp-content/plugins/woocommerce/includes/admin/wc-admin-functions.php(381): do_action(‘woocommerce_bef…’, Object(WC_Order_Item_Product)) #4 /home/customer/www/unioncambios.com/public_html/1/wp-content/plugins/woocommerce/includes/admin/meta-boxes/class-wc-meta-box-order-items.php(53): wc_save_order_items(117, Array) #5 /home/customer/www/unioncambios.com/public_html/1/wp-include in /home/customer/www/unioncambios.com/public_html/1/wp-content/plugins/woocommerce-multi-currency/admin/order.php on line 443

This error comes when my YITH POS plugin creates a product but it does not sync with Woocommerce.

I have products that are custom that should not sync as they may not sell again.

Because there are computers that are custom built.

Is there a way to get your plugins to work with it?