[Woocommerce] Missing tabs

Hi everybody !

I’m meeting an issue with my woocommerce pages.
I’m working on a customer’s website, and 2 weeks ago they asked me to remove the woocommerce’s product tabs (description and review box), I did it adding the following code on my theme’s ‘functions.php’

remove_action(‘woocommerce_product_tabs’,’woocommerce_product_description_tab’,10);
remove_action( ‘woocommerce_product_tabs’, ‘woocommerce_product_reviews_tab’,30);

Now, we decide to change (again) the design of the woocommerce pages, and they asked me to restore this description box.
So I tried adding this :

add_action(‘woocommerce_product_tabs’,’woocommerce_product_description_tab’,10);
add_action( ‘woocommerce_product_tabs’, ‘woocommerce_product_reviews_tab’,30);

The product description is back on my single-product pages, but only in text :
https://hpics.li/cc00c8a

I think the main issue, is that between the moment I deleted these tabs, and the moment I tried to bring them back, we made WordPress 4.0 update, and our theme’s update.
When I came to delete the first code I added on functions.php, the “remove action” php lines had disappeared, that’s why I had to add “add action” php lines.

I precise that I’m very new on using woocommerce, I’d like to correct this.
I tried uninstalling and then installing again woocommerce, but the issue is still here.

Any ideas ?

Here are some informations that could be usefull :
– WP version : 4.0
– Woocommerce version : 2.2.4
– Theme : Enfold