Testimonial page not edit-able

Hey there,

Recently started a new job doing marketing and other odd jobs at a small business, been running the WordPress site so far without too many errors. But today i was asked to add a testimonial to the testimonials page, thing is when i go into the page editor for testimonials and try to add text it doesn’t show up. So does anyone recognize what plugin/template/anything about how this webpage is structured? and how i would go about editing it, or if i should just delete the whole thing and make a new page.

Link: http://www.lorettamurphytranslations.com/testimonials/

Thanks in advance!