page Payment multilingual doesn’t work

Hello,

I have a issu with the payment page (stripe). I have translatepress as plugin and I use 2 others languages.

In french no problem, but when I switch to other language it does’nt work … The payment box doesn’t appear … The link on the browser change, but “the post number” is the same. So I don’t know how to do . I had the same issu with other payment plugin .. And never find how to resolve it .

Thanks

The page I need help with: [log in to see the link]