OnDemand NPrinitng extension for Qlik Sense is part of Qlik Sense installation. You have 2 options:
* Upgrade your Qlik Sense installation or
* "steal" extension from the version you want to upgrade to and import it to Qlik Sense server. Note that after you restart services that default extensions are installed so you would have to "cheat" and modify some of the auto-installers. There are instructions in post comments i gave you link to on how to do it - so please read comments as well as there will be part mentioning "c:\Program Files\Qlik\Sense\ExtensionBundles....." and files in this path to be modified.
cheers Lech, When applicable please mark the correct/appropriate replies as "solution" (you can mark up to 3 "solutions". Please LIKE threads if the provided solution is helpful to the problem.