[Hall of Famer]

Well first of all I am not sure this script actually works on GoDaddy, you may end up experiencing other issues but hopefully you will be fine. For this one, just copy whatever is inside the parenthesis (GUIComponent $module) from the setDivision method in Sidebar to AdminSideBar and it will disappear. An alternative solution is to simply disable strict standard error(as it does not really affect your site in any way more than poping up an annoying message) from your server.