Ligthbox not working

Hi there – I have just did a fresh install of woocommerce on a the X Theme. The product images open as a full screen in a new window instead of a woocommerce lightbox.

Also, there is no way for me to turn the lightbox option in settings->products->display as this option simply is not there. (please see the screenshot https://cl.ly/3T2Y0Y0W3S1Z )

Any idea why this is happening?

Thanks!
url:https://biznessrebels.com/shop/

### WordPress Environment ###

Home URL: https://biznessrebels.com
Site URL: https://biznessrebels.com
WC Version: 2.7.0
Log Directory Writable: ?
WP Version: 4.7.1
WP Multisite: –
WP Memory Limit: 768 MB
WP Debug Mode: –
WP Cron: ?
Language: en_US

### Server Environment ###

Server Info: Apache
PHP Version: 5.6.29
PHP Post Max Size: 128 MB
PHP Time Limit: 120
PHP Max Input Vars: 3000
cURL Version: 7.52.1
OpenSSL/1.0.2j

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: 2.7.0
WC Database Prefix: wp1r_
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: ? The MaxMind GeoIP Database does not exist - Geolocation will not function. You can download and install it manually from https://dev.maxmind.com/geoip/legacy/geolite/ to the path: . Scroll down to "Downloads" and download the "Binary / gzip" file next to "GeoLite Country". Please remember to uncompress GeoIP.dat.gz and upload the GeoIP.dat file only.

### Security ###

Secure connection (HTTPS): ?
Hide errors from visitors: ?

### Active Plugins (7) ###

Cornerstone: by Themeco – 1.3.3
Envira Gallery: by Envira Gallery Team – 1.5.9
Cornerstone Row Separator: by Perceptive – 1.3.0
Slider Revolution: by ThemePunch – 5.3.1.5
SG CachePress: by SiteGround – 2.3.11
WooCommerce Stripe Gateway: by WooCommerce – 3.0.7
WooCommerce: by WooThemes – 2.7.0-beta-1

### Settings ###

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

### WC Pages ###

Shop base: #369 - /shop/
Cart: #370 - /cart/
Checkout: #371 - /checkout/
My account: #372 - /my-account/

### Theme ###

Name: X
Version: 4.6.4
Author URL: https://theme.co/
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 ###

Archive Template: Your theme has a woocommerce.php file
you will not be able to override the woocommerce/archive-product.php custom template since woocommerce.php has priority over archive-product.php. This is intended to prevent display issues.

Overrides: x/woocommerce/cart/cart-empty.php
x/woocommerce/cart/cross-sells.php version 1.6.4 is out of date. The core version is 2.7.0
x/woocommerce/loop/loop-end.php
x/woocommerce/loop/loop-start.php
x/woocommerce/loop/pagination.php
x/woocommerce/notices/error.php
x/woocommerce/notices/notice.php
x/woocommerce/notices/success.php
x/woocommerce/single-product/product-image.php version 2.6.3 is out of date. The core version is 2.7.0
x/woocommerce/single-product/product-thumbnails.php version 2.6.3 is out of date. The core version is 2.7.0
x/woocommerce/single-product/related.php version 1.6.4 is out of date. The core version is 2.7.0
x/woocommerce/single-product/tabs/tabs.php
x/woocommerce/single-product/up-sells.php
x/woocommerce/single-product-reviews.php

Outdated Templates: ?Learn how to update