AppXtender Render Server error when using Print Export or Email

AppXtender Render Server error when using Print Export or Email

This often occurs when the AppXtender Rendering Server service is running under the impersonation account as opposed to the Local System and does not have the right to all needed resources to perform these tasks. 

Here are the steps to fix:

1. Go to Administrative Tools - Services and locate AppXtender Rendering Server service
2. Right-click on the service and choose Properties
3. Go to the second tab (Security) and check the box next to "Local System account", click Apply then OK
4. Right-click on the service once again and choose Restart to put into effect.