404. That’s an error.

The requested URL /translate_c?hl=en&ie=UTF-8&sl=ru&tl=en&u=http://ru.wikipedia.org/w/index.php%3Ftitle%3D%25D0%25A1%25D0%25BB%25D1%2583%25D0%25B6%25D0%25B5%25D0%25B1%25D0%25BD%25D0%25B0%25D1%258F:Book%26bookcmd%3Dbook_creator%26referer%3D%25D0%259F%25D0%25BB%25D0%25B0%25D0%25BD%25D0%25B5%25D1%2582%25D0%25B0%2B%25D0%25B1%25D1%2583%25D1%2580%25D1%258C%2B%28%25D1%2584%25D0%25B8%25D0%25BB%25D1%258C%25D0%25BC%29&prev=_t&rurl=translate.google.com&twu=1&usg=ALkJrhiUoPEQl2MPC7IvEtxk7FIE2T3CYw was not found on this server. That’s all we know.