Jacky… PLEASE make sure you post in the correct forum category. You posted this in the “Suggestion” category so I had to move this to General Topics.
403 Forbidden notice can mean something did not go right with the install of Widgetkit, or your host provider has something set that is causing the error. The details about Powered by LiteSpeed web server is related to your web host provider. Although I do not provide support for third party plugins, what I would recommend is that you uninstall Widgetkit, then try to install it again and see if that works. If you get that same error message, then you will need to contact your host support and explain to them what you are trying to do and give them the exact error message. 403 is a permissions error which relates to files and or file directories on a server.