[Plugin: WooCommerce] Add to cart not displayed with variations, js error

Hi everyone,

I have a big issue with WooCommerce…
I didn’t find any solutions on support forums so that’s why I’m asking your help.
> I’ve seen similar problems but nothing works

I have a js error that i can’t resolve (i’m such a noob with javascript) :
Uncaught TypeError: undefined is not a function wubby.fr/site/wp-content/plugins/woocommerce/assets/js/frontend/single-product.min.js?ver=2.1.12:1
Here is my product page : https://wubby.fr/site/produit/chausson-2/

My product has variations, prices for variations etc…
But I don’t know why the add to basket is hidden and doesn’t work anyway (please select a variation).

If you have any idea about the problem It will help me.
Thank you in advance !

Regards,
Thibaullt