Regarding order Number

Hello Team,

Hope you all guyz are fit & fine.

Recently i received an order and checked my bank transaction record & found their is again Old Order Id.
Can you please check it from where it generated .Which file i need to check.

And please https://wordpress.org/support/topic/regarding-order-number?replies=27

Attachment:

http://kpmglobaltech.com/WP_KPM/wp-content/uploads/2016/05/image.png

Thank You & Regards
GOURAV

https://wordpress.org/plugins/ing-kassa-compleet/