Can't see anymore my products, only product categories can be seen

I updated some woocommerce files manually as discribed here :https://docs.woothemes.com/document/fix-outdated-templates-woocommerce/

then, all product pages can t be seen on my webiste, only blank pages appear.

however product categories are displayed only.

I did updated the following files:

-woocommerce/cart/mini-cart.php
-woocommerce/content-product.php,
-woocommerce/content-widget-product.php
-woocommerce/single-product/review
-product-searchform.php

i think it s all

Does anyone had the same issues or has a solution?

thx in advance

Bruno

https://wordpress.org/plugins/woocommerce/