I guess the specific package you are trying to install needs to run a Powershell script and for some reason, Powershell execution is disabled on your machine.
You can search google on “how to enable Powershell” for a complete guide but generally, it goes like this:
- Open up a Powershell command window (just search for Powershell after pressing windows start button)
- Check out current restrictions by typing
Get-ExecutionPolicy
- Enable PowerShell by typing
Set-ExecutionPolicy remotesigned
This issue does not affect the server you are planing to install your application on.