Woocommernce Intregation issue

I am having a major issue integrating my ERP Next page. We have gone over all the steps as required in the documentation. Every time we getting errors. We got it to work several times but after 1-2 orders it disconnects again. The error occurs each time we submit multiple orders in WooCommerce; as well as when someone with the same customer name submitting repeating orders; and when the customer orders one of our bundle package items. When any of these actions occur, the order is not reflected in the ERP system and the connection crashes. We have done all the troubleshooting with the support team at WOOCommerce and they have helped as much as they can. So now we are hoping there is something that can be done in our ERP system to fix this.