Unable to Create Customer while creating Lead in Sales User Responsibility

Hi Team,

I am getting the below error

Error Page

You have encountered an unexpected error. Please contact the System Administrator for assistance.

Click here for exception details.

I am creating the new Customer in Sales User Resp. while creating the new lead (Sales dashboard -> Create lead - > select customer) after filling all the required values for creating the new customer and when I hit 'apply', I get an error. Before that I already setup all the following Profile setups

Server Timezone (SERVER_TIMEZONE_ID)
ASN: Currency Conversion Period Type
ASN: Sales Dashboard Leads Aging Bin Period (Days)
ASN: Sales Dashboard Sales Campaign Bin Period (Days)