404. That’s an error.

The requested URL /translate_c?depth=1&tl=ja&u=https://dic.nicovideo.jp/a/%E3%82%A2%E3%82%A4%E3%83%89%E3%83%AB%E3%83%9E%E3%82%B9%E3%82%BF%E3%83%BC%20%E3%83%9F%E3%83%AA%E3%82%AA%E3%83%B3%E3%83%A9%E3%82%A4%E3%83%96%EF%BC%81%E3%81%AE%E3%83%A9%E3%82%A4%E3%83%96%E5%95%86%E5%93%81%E4%B8%80%E8%A6%A7 was not found on this server. That’s all we know.