[Plugin: Google AJAX Translation] Stopped working

As of December 1, 2001 Google no longer supports free translation:
https://code.google.com/apis/language/translate/overview.html

Google has discontinued its free translation API service:
https://code.google.com/apis/language/translate/overview.html

It is possible to use Google translation with their widget though, so you can put this code into a text widget or something like that:
https://translate.google.com/translate_tools

Hope that helps.
Nick