Can’t download file with Run or CMD

So when I run this script

powershell (New-Object System.Net.WebClient).DownloadFile('https://www.somewebsite.com', 'SomefolderSomefile.zip')

I get error

Exception calling "DownloadFile" with "2" argument(s): "An exception occurred during a WebClient request."
At line:1 char:5
+ & { (New-Object Net.WebClient).DownloadFile('https://www.dropbox.com/ ...
+     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:) [], MethodInvocationException
    + FullyQualifiedErrorId : WebException