1.7.2.3 Product combinations and Cart not working at all

[YitongM]

Hello,

I have Prestashop 1.7.2.3. The theme is the classic one, I modified by a lot of CSS. I have combinations as different colors for the same product. I have encountered a lot of problems. 

Nothing works.

• When I change the combination, the image of this combination is not showing. Only the default image showing. 
• And when change the color from orange to red for example, nothing happens, the URL of the page is still https://xxxxxxxxxxxxxx/xxxxxxxx.html#/5-colour-red, The page is not reloading or the value of the combination is not changing.
• When one combination has stock, all other out-of-stock combinations can still be ordered. The button "Add to cart" is still active.
• The Cart is not working at all. I can add nothing to the cart. Just nothing happens when I click the button "Add to cart".

 

Can anyone help me, please? I can offer more informations on the website if you need.

Thank you!

 

 

[YitongM]

And I had this error. Might be related? 

What is Mixpanel anyway and where does it used for? I didn't add it, so must be somewhere originally with Prestashop or the theme classic