Problems on my website

Hello,
I have some troubles on my website especialy about the portfolio-type witch are my main menus (Projets, concours..). Their is a big blank under each picture and the texte is far under the images while normaly it’s on the images..
My theme is Virtue from Kadence Theme.
Their support tell me :
“Looks like you have a minfy plugin, loading minified css in its own file: https://vimade.ch/wp-content/cache/wpfc-minified/fcf43a02b3e057a358e884a4cf4d5cb0/1518350851index.css
That is great but it’s not been updated to match that of the latest css.”

Recently I have installed Imagify and Lazyload but they tell me :
“The issue you are experiencing is related to WP Fastest Cache, and not Imagify.
Please contact their support to assist you with your issue.”

Their is one week we have passed from http to https but the problem is from 2 days ago.

So please could you help me to fix that issue quickly ?
Thank you very much for your help !
Tanguy

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