If you accidentally move an element outside the visible window, you may move it back by using the browser's scrollbars to scroll the window until the element is visible, then drag it back to the main area of the window.
The administrator of the site may have disabled this ability. If the map uses ArcIMS software and returning geometry is disabled, then the website won't highlight features.
The web application may have timed out. Try holding the Control key (Ctrl) down and clicking the browser's Refresh button to restart the web application. If the error continues, please report the problem to the website administrator.
In this case, the normal web page does not appear, just this error message. A number of problems may be causing this error. The server may have too many users. In this case, wait a few minutes and try the website again. Or the server may be down. If the problem persists, contact the website administrator.
In this case, the normal web page does not appear, just this error message. The cause may be that one or more of the GIS services that the website uses is not running. Ask the website administrator to check that the services used by the website are running and accessible to the website.