Robotics v19.1.11 is not supported with Windows 20 H2, hence you are getting this issue. I suggest you upgrade the studio to the latest version of Robotics (19.1.87) as the Windows 20 H2 is added from v19.1.69 onwards.
Incidentally, you can update the Pega Native Foundation (PNF) on its own (separate from Runtime) to resolve this issue, however given the age of the version of Runtime you are using, I would suggest updating both Runtime (and of course Studio) and the PNF.
@JarpulaS Your version of Pega Native Foundation is ...2004. That means it is tested to work with Windows 10 Version 2004 and below. As your version is greater than that, you'll need one that ends with 2101 (that is the version that supports 21H1). It is shipped with Runtime version 19.1.88 or higher. Download that version of Runtime and install the PNF from that zip and you should be good.