Metadata reload Failed after Nprinting upgrade

[Rakesh_HB]

Metadata reload Failed after Nprinting and Qlik Sense are upgraded and below errors are seen in Nprinting Logs

Error :
"ERROR LHRAP8206Q 0 0 0 0 0 0 0 0 RabbitMq service is not connected - trying again in 3 seconds"

&

"FATAL LHRAP8206Q 0 0 0 0 0 0 0 0 Fatal error on Scheduler service. ERROR: System.NullReferenceException: Object reference not set to an instance of an object.↓↓"

Environment

• Qlik NPrinting 
• Qlik Sense Enterprise on Windows 

Resolution

If Qlik Sense was upgraded, then you must re-export certificates from the Qlik Sense server to the NPrinting server.
For more information see below: 

NPrinting Connections Fail After Qlik Sense Upgrade to February 2020 or later versions 

You must follow the steps mentioned below while upgrading the Nprinting,
Qlik NPrinting Upgrade Install from NPrinting 17.3.x or higher 

You should also look at the unsupported items for Nprinting with Qlik View/Qlik Sense,

Qlik View: Qlik NPrinting: Unsupported QlikView Document items, System Configurations and other limitations 

Qlik Sense: Qlik NPrinting and Qlik Sense Object Support and Limitations  

Cause

Certificates are not in sync with Qlik Nprinting and Qlik Sense.