Product image not showing on front end

Issue found at: https://www.caralovelle.com/engagement-rings

### WordPress Environment ###

Home URL: https://www.caralovelle.com
Site URL: https://www.caralovelle.com
WC Version: 3.0.6
Log Directory Writable: ?
WP Version: 4.7.4
WP Multisite: –
WP Memory Limit: 768 MB
WP Debug Mode: –
WP Cron: ?
Language: en_US

### Server Environment ###

Server Info: Apache
PHP Version: 5.6.30
PHP Post Max Size: 128 MB
PHP Time Limit: 120
PHP Max Input Vars: 3000
cURL Version: 7.53.0
OpenSSL/1.0.2k

SUHOSIN Installed: –
MySQL Version: 5.6.28
Max Upload Size: 128 MB
Default Timezone is UTC: ?
fsockopen/cURL: ?
SoapClient: ?
DOMDocument: ?
GZip: ?
Multibyte String: ?
Remote Post: ?
Remote Get: ?

### Database ###

WC Database Version: 3.0.6
WC Database Prefix: wpvi_
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: ?

### Security ###

Secure connection (HTTPS): ?Your store is not using HTTPS. Learn more about HTTPS and SSL Certificates.
Hide errors from visitors: ?

### Active Plugins (16) ###

LayerSlider WP: by Kreatura Media – 6.1.0
Akismet Anti-Spam: by Automattic – 3.3.1
CF7 Customizer: by mrahmadawais
WPTie – 1.1.0

Contact Form DB: by Michael Simpson – 2.10.32
Contact Form 7: by Takayuki Miyoshi – 4.7
Fusion Builder: by ThemeFusion – 1.1.6
Fusion Core: by ThemeFusion – 3.1.6
GitHub Updater: by Andy Fragen – 6.3.2.1
Maintenance: by fruitfulcode – 3.4.1
Slider Revolution: by ThemePunch – 5.4.2
SG Optimizer: by SiteGround – 3.3.1
Tidio Chat: by Tidio Ltd. – 3.0.2
WooCommerce PayPal Express Checkout Gateway: by WooCommerce – 1.2.1
WooCommerce: by Automattic – 3.0.6
Yoast SEO: by Team Yoast – 4.7.1
WP Smush: by WPMU DEV – 2.6.3

### Settings ###

API Enabled: ?
Force SSL: ?
Currency: SGD ($)
Currency Position: left
Thousand Separator: ,
Decimal Separator: .
Number of Decimals: 2
Taxonomies: Product Types: external (external)
grouped (grouped)
simple (simple)
variable (variable)

Taxonomies: Product Visibility: exclude-from-catalog (exclude-from-catalog)
exclude-from-search (exclude-from-search)
featured (featured)
outofstock (outofstock)
rated-1 (rated-1)
rated-2 (rated-2)
rated-3 (rated-3)
rated-4 (rated-4)
rated-5 (rated-5)

### WC Pages ###

Shop base: #16552 - /products
Cart: #16564 - /cart
Checkout: #16586 - /checkout
My account: #16576 - /my-account

### Theme ###

Name: Avada
Version: 5.1.6
Author URL: https://themeforest.net/user/ThemeFusion
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: ?

### Templates ###

Overrides: Avada/woocommerce/cart/cart.php
Avada/woocommerce/checkout/form-pay.php
Avada/woocommerce/checkout/review-order.php
Avada/woocommerce/checkout/thankyou.php
Avada/woocommerce/loop/loop-start.php
Avada/woocommerce/single-product/add-to-cart/variable.php
Avada/woocommerce/single-product/add-to-cart/variation-add-to-cart-button.php
Avada/woocommerce/single-product/short-description.php
Avada/woocommerce/single-product/tabs/additional-information.php
Avada/woocommerce/single-product/tabs/description.php

Hello there,

I have uploaded product images on my website but there are not showing on the front end – https://www.caralovelle.com/engagement-rings. You will notice there is a gap between the 4th and the 6th ring. Once in the backend you can find that the product has been added in Products as – ER00000005. We have then added it in the page – /engagement-rings as woo shortcode – ER00000005 and still it does not appear compared to the other ones. Can you please help with this?