Error with Softomotive automation add-on


WebAutomation.LaunchChrome Url: myURL WindowState:WebAutomation.BrowserWindowState.Normal ClearCache:False ClearCookies:False BrowserInstance=> Browser

I’m trying to open a web page but when I ran the above code I’m getting error that Failed to load the control.I have added the Softomotive automation add-on extension to chrome then also its throwing the error.
Can anyone help me with this?