Product gallery images not showing on product page

I have some products I am adding to my site. The products show up in the store when I add them. The product image shows up fine. However, when I add images to the product gallery for these new products, they do not show up on the product page. Thank you in advance.

Site: https://www.airdraulicsinc.com/

System Status Report:

### WordPress Environment ###

Home URL: https://www.airdraulicsinc.com
Site URL: https://www.airdraulicsinc.com
WC Version: 2.5.5
Log Directory Writable: ?
WP Version: 4.5.2
WP Multisite: –
WP Memory Limit: 256 MB
WP Debug Mode: –
Language: en_US

### Server Environment ###

Server Info: Apache
PHP Version: 5.6.19
PHP Post Max Size: 65 MB
PHP Time Limit: 30
PHP Max Input Vars: 1000
SUHOSIN Installed: –
MySQL Version: 5.6.25
Max Upload Size: 64 MB
Default Timezone is UTC: ?
fsockopen/cURL: ?
SoapClient: ?
DOMDocument: ?
GZip: ?
Multibyte String: ?
Remote Post: ?
Remote Get: ?

### Database ###

WC Database Version: 2.5.5
:
woocommerce_sessions: ?
woocommerce_api_keys: ?
woocommerce_attribute_taxonomies: ?
woocommerce_termmeta: ?
woocommerce_downloadable_product_permissions: ?
woocommerce_order_items: ?
woocommerce_order_itemmeta: ?
woocommerce_tax_rates: ?
woocommerce_tax_rate_locations: ?

### Active Plugins (17) ###

Admin Post Navigation: by Scott Reilly – 2.0
Advanced Custom Fields: by Elliot Condon – 4.4.7
Contact Form 7: by Takayuki Miyoshi – 4.4.2
Custom Field Bulk Editor: by SparkWeb Interactive
Inc. – 1.9.1

Google XML Sitemaps: by Arne Brachhold – 4.0.8
Meta Box: by Rilwis – 4.8.6
Newsletter Sign-Up: by Danny van Kooten – 2.0.5
NextGEN Gallery: by Imagely – 2.1.43
Post Navigator: by Plugify – 1.3.4
Regenerate Thumbnails: by Alex Mills (Viper007Bond) – 2.2.6
Sucuri Security - Auditing, Malware Scanner and Hardening: by Sucuri
INC – 1.7.17

WooCommerce Call for Price: by Algoritmika Ltd – 2.0.1
Woocommerce Freight Shipping Method: by Brian Smith –
Woocommerce Products Per Page: by Jeroen Sormani – 1.2.2
WooCommerce: by WooThemes – 2.5.5
Yoast SEO: by Team Yoast – 3.2.5
WPtouch Pro: by BraveNewCode Inc. – 4.1.2

### Settings ###

Force SSL: ?
Currency: USD ($)
Currency Position: left
Thousand Separator:
Decimal Separator: .
Number of Decimals: 2

### API ###

API Enabled: ?
API Version: 3.1.0

### WC Pages ###

Shop Base: #139 - /shop/
Cart: #2954 - /cart/
Checkout: #141 - /checkout/
My Account: #143 - /my-account/

### Taxonomies ###

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

### Theme ###

Name:
Version: – 0 is available
Author URL:
Child Theme: ? – If you're modifying WooCommerce on a parent theme you didn't build personally
then we recommend using a child theme. See: How to create a child theme

WooCommerce Support: Not Declared

### Templates ###

Overrides: wordpress-theme-default/woocommerce/archive-product.php version 1.6.4 is out of date. The core version is 2.0.0
wordpress-theme-default/woocommerce/content-product.php version 1.6.4 is out of date. The core version is 2.5.0
wordpress-theme-default/woocommerce/content-single-product.php
wordpress-theme-default/woocommerce/global/wrapper-end.php
wordpress-theme-default/woocommerce/global/wrapper-start.php
wordpress-theme-default/woocommerce/loop/add-to-cart.php version 1.6.4 is out of date. The core version is 2.5.0
wordpress-theme-default/woocommerce/loop/pagination.php version 1.6.4 is out of date. The core version is 2.2.2
wordpress-theme-default/woocommerce/loop/price.php
wordpress-theme-default/woocommerce/single-product/add-to-cart/external.php version 1.6.4 is out of date. The core version is 2.1.0
wordpress-theme-default/woocommerce/single-product/add-to-cart/grouped.php version 1.6.4 is out of date. The core version is 2.1.7
wordpress-theme-default/woocommerce/single-product/add-to-cart/simple.php version 1.6.4 is out of date. The core version is 2.1.0
wordpress-theme-default/woocommerce/single-product/meta.php
wordpress-theme-default/woocommerce/single-product/price.php version 1.6.4 is out of date. The core version is 2.4.9
wordpress-theme-default/woocommerce/single-product/product-attributes.php version 1.6.4 is out of date. The core version is 2.1.3
wordpress-theme-default/woocommerce/single-product/product-image.php version 1.6.4 is out of date. The core version is 2.0.14
wordpress-theme-default/woocommerce/single-product/product-thumbnails.php version 1.6.4 is out of date. The core version is 2.3.0
wordpress-theme-default/woocommerce/single-product/related.php
wordpress-theme-default/woocommerce/single-product/review.php version 1.6.4 is out of date. The core version is 2.5.0
wordpress-theme-default/woocommerce/single-product/sale-flash.php
wordpress-theme-default/woocommerce/single-product/share.php
wordpress-theme-default/woocommerce/single-product/short-description.php
wordpress-theme-default/woocommerce/single-product/tabs/description.php version 1.6.4 is out of date. The core version is 2.0.0
wordpress-theme-default/woocommerce/single-product/title.php
wordpress-theme-default/woocommerce/single-product/up-sells.php
wordpress-theme-default/woocommerce/single-product.php

: Learn how to update outdated templates

https://www.ads-software.com/plugins/woocommerce/