PS C:\Users\panda\Desktop> .\testing.ps1
ConvertTo-SecureString : Key not valid for use in specified state.
At C:\Users\panda\Desktop\testing.ps1:3 char:12
+ $sstring = ConvertTo-SecureString $lnlfd
+            ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidArgument: (:) [ConvertTo-SecureString], CryptographicException
    + FullyQualifiedErrorId : ImportSecureString_InvalidArgument_CryptographicError,Microsoft.PowerShell.Commands.ConvertToSecureStringCommand

New-Object : Exception calling ".ctor" with "2" argument(s): "Cannot process argument because the value of argument "password" is null. Change the value of argument
"password" to a non-null value."
At C:\Users\panda\Desktop\testing.ps1:4 char:12
+ $script = (New-Object system.Management.Automation.PSCredential("lnlfd", $sstrin ...
+            ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation: (:) [New-Object], MethodInvocationException
    + FullyQualifiedErrorId : ConstructorInvokedThrowException,Microsoft.PowerShell.Commands.NewObjectCommand