An error occurred. Please try again or contact your administrator.

I am consistently getting this error message on a Mac with Chrome, Firefox and Safari. This occurs when searching, using the back button, and other general navigation options.

"An error occurred. Please try again or contact your administrator."

Here is a link to a screen capture: https://www.dropbox.com/s/kt9rtghyess8y5a/error.png?dl=0