$ sudo apt-get update
$ sudo apt-get install libfreerdp-plugins-standard 

libfreerdp-plugins-standard is installed in your system.

Make ensure the libfreerdp-plugins-standard package were installed using the commands given below,

$ sudo dpkg-query -l | grep libfreerdp-plugins-standard *

You will get with libfreerdp-plugins-standard package name, version, architecture and description in a table

libfreerdp-plugins-standard package basic information: