Bug Product Page Prestashop. Message: This product does not exist in this declination.

[Leo04]

I finished setting up my online store prestashop and I entered all the product variations and stock. The problem is that I found a bug that appeared overnight on all product pages with variations:

Or modules in left position and zoom product does not work

Or modules (left and zoom product) and work but we can not add products to your cart. The following message then appears that the stock has been entered into variations and "This product does not exist in this variation. However, you can select another"

Only the product pages with no variation function:

Do you have an idea of ​​the source of the blocking bugs to finalize my shop Prestashop?