Microsoft.Dynamics.AX.Xpp.ErrorException was thrown

I was getting the above error while invoicing the sales order. The customer wanted to send the sales invoice as an email on print management. Below is print management setup of sales invoice.

Solution:

The issue was the setup on customer default setup on Accounts receivable/Common/Customers/All customers/Setup tab/print management and Accounts receivable/setup/form setup/print management were same. This was triggering the error. It seems report was getting sent to the customer twice.