Support » Plugin: Custom Order Numbers for WooCommerce » Issue with this plugin and woocommerce email

  • Hello, the plugin works great, but in the email that the client receives, there is an error that appears before the Order number and table, how can i fix that?

    Warning: call_user_func_array() expects parameter 1 to be a valid callback, class ‘WC_Order’ does not have a method ’email_instructions’ in /home/xxxx/public_html/xxxxxx.com/wp-includes/class-wp-hook.php on line 288

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