My page appears in a different language

Hello,
I receive feedback from users that my page http://www.chaosadvantage.com/our-story/ appears in a different language, although I’m not sure why. Can you help please?

Thanks,
Jeff

Dear Jeff,

Could you please explain to us more exactly of how to identify that page is displaying other language?

Does this issue always to happen or just a sudden?

Regards,
Kharis