Hello Everyone,
I am having an issue with an error messages being displayed after checkout on the thank you page. The order is being successfully placed and am able to see the order in my orders list. The customer is also receiving the confirmation email successfully, but they are getting confused with the following error messages. 
JUser: :_load: Unable to load user with ID: 439
You must provide at least one recipient email address.
The Email Address in the Shoppers information(shop) is my email address which is same in the server section as well in global configuration. 
AM using the following version
PHP Version   5.4.45
Web Server   Apache
WebServer to PHP Interface   litespeed
Joomla! Version   Joomla! 3.4.5 Stable
Thank you in advance for your help, awaits your soonest response
			
			
			
				You are using an out of date and insecure Joomla version. Current version is 3.8.4  http://forum.virtuemart.net/index.php?topic=118683
But what VirtueMart version are you using?