MS CRM 2016 On Premise : Error coming while creating email template using wpf aaplication

Hi,

I have created a WPF application which creates the email template on certain conditions.

Its working fine on MS CRM 2016 Online version. But not working on On-Premise version of MS CRM 2016.

Below is the error coming on the line where I am creating it:

{"System.Data.SqlClient.SqlException: Microsoft Dynamics CRM has experienced an error. Reference number for administrators or support: #4AEEB3BF"}

This looks very generic error.

Did not get any solution based on the error coming.

Any help is appreciated.

Regards,

arunshar