display problem: modification from assistant smile the 7 march 2016

Hi,

please, i need some urgent help!!
there is since 2 month problem of display on ipad resolution on your theme.
your assistant try a modification the 7th march and ask me to check.
i want you to cancel this modification because of course it solves the ipad resolution problem, but it changes the original dimensions of the theme , and the result does not suit me at all.
please i need you to go back. because now my 250 items have an image completely distorted / Quirky.
you ever have your admin access to my website optique-export.fr
please do the necessary.
80% of my clients works on PC, and i don't want them to see my website like this....
thanks for the support
julie