Excel Powershell Command Center - Runtime error 424 Object missing

[spacelord009]

Hi could anybody help here. I cannot find the right solution for this error message

Excel 2010 - execute powershell commands with button

Row13, column 2 enable-mailbox -identity user1 -Alias user1

Sub button9_click()
Counter = 13
Do
        Command = Worksheets("EX2010 Commands").Cells(Counter, 2).Value
 Shell ("C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe -ExecutionPolicy Bypass -noexit iex " & Command)
Counter = Counter + 1
Loop Until Command = ""
End Sub

Runtime error 424 Object missing