Flipbook doesn't display

I was able to install, activate the plugin and added the images to the flipbook followingthe steps provided. I added the flipbook as a page in my menu but when I click on the link on the site or browse to it by typing the URL i get the error “page not found”

As you can see I did not change anything on the URL

https://www.caribbeantaxi.net/es/flip_pong/bailando-cubano-total/

Note: This is a multileguage site running WPML

https://www.ads-software.com/plugins/flip-pong-v/