Variable product price not showing on front nor back end

hi everyone,

I’m having a issue concerning one of my woocommerce product.
After trying to modify prices on some of my products, it seems that one of the variable product price can not be shown anymore either on the single product page or on the admin panel.

Here is how the price is supposed to be shown : https://drive.google.com/file/d/0BwZbFw6SbLNKNUhuU2ltOERPVG8/view?usp=sharing

Here is what is actually shown : https://drive.google.com/file/d/0BwZbFw6SbLNKOGRGUXlOMXFDQWc/view?usp=sharing

Despite that the product price has been correctly filled :
https://drive.google.com/file/d/0BwZbFw6SbLNKY3c5VUg3Zl9sY0E/view?usp=sharing

And it isn’t shown in the product summary too :
https://drive.google.com/file/d/0BwZbFw6SbLNKZlRWQ2VXMXRaUTQ/view?usp=sharing

Take in consideration that the price wasn’t shown even before the last woocommerce update that i did couple hours ago.

here is the woocommerce status report :

### WordPress Environment ###

Home URL: https://www.lesjusdepy.fr
Site URL: https://www.lesjusdepy.fr
WC Version: 2.6.14
Log Directory Writable: ?
WP Version: 4.6.3
WP Multisite: –
WP Memory Limit: 512 MB
WP Debug Mode: –
WP Cron: ?
Language: fr_FR

### Server Environment ###

Server Info: Apache
PHP Version: 5.6.21
PHP Post Max Size: 64 MB
PHP Time Limit: 300
PHP Max Input Vars: 16000
cURL Version: 7.21.0
OpenSSL/0.9.8o

SUHOSIN Installed: –
MySQL Version: ? 5.5.54 - Nous recommandons MySQL version 5.6 minimum. Voir?: Exigences de WordPress
Max Upload Size: 64 MB
Default Timezone is UTC: ?
fsockopen/cURL: ?
SoapClient: ?
DOMDocument: ?
GZip: ?
Multibyte String: ?
Remote Post: ?
Remote Get: ?

### Database ###

WC Database Version: 2.6.14
: 
woocommerce_sessions: ?
woocommerce_api_keys: ?
woocommerce_attribute_taxonomies: ?
woocommerce_downloadable_product_permissions: ?
woocommerce_order_items: ?
woocommerce_order_itemmeta: ?
woocommerce_tax_rates: ?
woocommerce_tax_rate_locations: ?
woocommerce_shipping_zones: ?
woocommerce_shipping_zone_locations: ?
woocommerce_shipping_zone_methods: ?
woocommerce_payment_tokens: ?
woocommerce_payment_tokenmeta: ?
MaxMind GeoIP Database: ?

### Active Plugins (14) ###

Ariva Core: par ThemeStudio – 1.0
Contact Form 7: par Takayuki Miyoshi – 4.6.1
Easy Responsive Tabs: par oscitas – 3.0
WPBakery Visual Composer: par Michael M - WPBakery.com – 4.11.2.1
MailChimp pour WordPress: par ibericode – 3.1.7
Order Delivery Date for WooCommerce (Lite version): par Tyche Softwares – 2.7
Parallax Backgrounds for VC: par Benjamin Intal - Gambit – 3.6.1
Quick Page/Post Redirect Plugin: par anadnet – 5.1.8
Revolution Slider: par ThemePunch – 4.6.93
Braintree For WooCommerce Pro: par Payment Plugins
[email protected] – 2.5.8

WooCommerce: par WooThemes – 2.6.14
Yoast SEO: par L’équipe Yoast – 4.2.1
WP Construction Mode: par SmartCat – 3.31
WP Retina 2x: par Jordy Meow – 4.7.7

### Settings ###

Force SSL: –
Currency: EUR (€)
Currency Position: right
Thousand Separator: 
Decimal Separator: ,
Number of Decimals: 2

### API ###

API Enabled: ?

### WC Pages ###

Base Boutique: ? L’identifiant de page est définie
mais la page n’existe pas

Panier: #789 - /panier/
Commande: #790 - /commande/
Mon Compte: #791 - /mon-compte/

### Taxonomies ###

Product Types: external (external)
grouped (grouped)
simple (simple)
variable (variable)

### Theme ###

Name: ARIVA Child
Version: 1.5
Author URL: https://www.themestudio.net
Child Theme: ?
Parent Theme Name: ARIVA
Parent Theme Version: 2.1.0
Parent Theme Author URL: https://www.vulinhpc.com
WooCommerce Support: ?

### Templates ###

Overrides: ariva-child/woocommerce/archive-product.php
ariva/woocommerce/cart/cart-empty.php
ariva/woocommerce/cart/cart-item-data.php
ariva-child/woocommerce/cart/cart-shipping.php
ariva/woocommerce/cart/cart-totals.php
ariva/woocommerce/cart/cart.php
ariva/woocommerce/cart/cross-sells.php
ariva/woocommerce/cart/mini-cart.php
ariva/woocommerce/cart/shipping-calculator.php
ariva/woocommerce/checkout/cart-errors.php
ariva/woocommerce/checkout/form-billing.php
ariva/woocommerce/checkout/form-checkout.php
ariva/woocommerce/checkout/form-coupon.php
ariva/woocommerce/checkout/form-login.php
ariva/woocommerce/checkout/form-shipping.php
ariva/woocommerce/checkout/payment-method.php
ariva/woocommerce/checkout/payment.php
ariva/woocommerce/checkout/review-order.php
ariva/woocommerce/checkout/thankyou.php
ariva/woocommerce/content-product.php
ariva/woocommerce/content-product_cat.php
ariva/woocommerce/content-single-product.php
ariva/woocommerce/content-widget-product.php
ariva/woocommerce/global/breadcrumb.php
ariva/woocommerce/global/form-login.php
ariva/woocommerce/global/quantity-input.php
ariva/woocommerce/global/sidebar.php
ariva/woocommerce/global/wrapper-end.php
ariva/woocommerce/global/wrapper-start.php
ariva/woocommerce/loop/add-to-cart.php
ariva/woocommerce/loop/loop-end.php
ariva/woocommerce/loop/loop-start.php
ariva/woocommerce/loop/no-products-found.php
ariva/woocommerce/loop/orderby.php
ariva/woocommerce/loop/pagination.php
ariva/woocommerce/loop/price.php
ariva/woocommerce/loop/rating.php
ariva/woocommerce/loop/result-count.php
ariva/woocommerce/loop/sale-flash.php
ariva/woocommerce/myaccount/form-add-payment-method.php
ariva/woocommerce/myaccount/form-edit-address.php
ariva/woocommerce/myaccount/form-login.php
ariva/woocommerce/myaccount/form-lost-password.php
ariva/woocommerce/myaccount/my-account.php
ariva/woocommerce/myaccount/my-address.php
ariva/woocommerce/myaccount/my-downloads.php
ariva/woocommerce/myaccount/view-order.php
ariva/woocommerce/notices/error.php
ariva/woocommerce/notices/notice.php
ariva/woocommerce/notices/success.php
ariva/woocommerce/order/form-tracking.php
ariva/woocommerce/order/tracking.php
ariva/woocommerce/single-product/add-to-cart/external.php
ariva/woocommerce/single-product/add-to-cart/grouped.php
ariva/woocommerce/single-product/add-to-cart/simple.php
ariva/woocommerce/single-product/add-to-cart/variable.php
ariva/woocommerce/single-product/meta.php
ariva/woocommerce/single-product/price.php
ariva/woocommerce/single-product/product-attributes.php
ariva/woocommerce/single-product/rating.php
ariva/woocommerce/single-product/related.php
ariva/woocommerce/single-product/review.php
ariva/woocommerce/single-product/sale-flash.php
ariva/woocommerce/single-product/share.php
ariva/woocommerce/single-product/short-description.php
ariva/woocommerce/single-product/tabs/additional-information.php
ariva/woocommerce/single-product/tabs/description.php
ariva/woocommerce/single-product/tabs/tabs.php
ariva-child/woocommerce/single-product/title.php
ariva/woocommerce/single-product/up-sells.php
ariva/woocommerce/single-product-reviews.php
ariva/woocommerce/single-product.php
ariva/woocommerce/taxonomy-product_cat.php
ariva/woocommerce/taxonomy-product_tag.php

Being French, the language of the site is French. Do not hesitate to ask me for translations if necessary

Any help would be appreciated,

Best regards.