Update to 3.0 causing add to card and quantities to vanish

As the title suggests after the update functionality of the store and making a purchase is not possible due to the ability to choose quantities and add to cart have vanished?

Thank you for help.

1.Site link: https://www.ocushield.com
2. `
### WordPress Environment ###

Home URL: https://www.ocushield.com
Site URL: https://www.ocushield.com
WC Version: 3.0.0
Log Directory Writable: ?
WP Version: 4.7.3
WP Multisite: –
WP Memory Limit: ? 40 MB – We recommend setting memory to at least 64MB. See: Increasing memory allocated to PHP
WP Debug Mode: –
WP Cron: –
Language: en_US

### Server Environment ###

Server Info: LiteSpeed
PHP Version: 5.6.30
PHP Post Max Size: 256 MB
PHP Time Limit: 0
PHP Max Input Vars: 1000
cURL Version: 7.53.1
OpenSSL/1.0.1e

SUHOSIN Installed: –
MySQL Version: 5.6.35
Max Upload Size: 256 MB
Default Timezone is UTC: ?
fsockopen/cURL: ?
SoapClient: ?
DOMDocument: ?
GZip: ?
Multibyte String: ?
Remote Post: ?
Remote Get: ?

### Database ###

WC Database Version: 3.0.0
WC Database Prefix: ocuwp_
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): ?
Hide errors from visitors: ?

### Active Plugins (32) ###

ManageWP – Worker: by ManageWP – 4.2.16
AdRoll for WooCommerce Stores: by AdRoll – 1.0.2
Affiliates Manager Google reCAPTCHA Integration: by wp.insider
affmngr – 1.0.3

Akismet Anti-Spam: by Automattic – 3.3
Better WordPress Minify: by Khang Minh – 1.3.3
Contact Form 7: by Takayuki Miyoshi – 4.7
Custom 404 Error Page: by Kaspars Dambis – 0.2.5
Facebook Conversion Pixel: by Kellen Mace – 1.3.5
Google Remarketing Codes: by Hal Gatewood (OPUBCO) – 1.1
Google XML Sitemaps: by Arne Brachhold – 4.0.8
Jetpack by WordPress.com: by Automattic – 4.7.1
Jilt for WooCommerce: by Jilt – 1.0.7
MailChimp for WooCommerce: by MailChimp – 1.1.1
WooCommerce Order Export and More: by JEM Plugins – 1.3
ExportFeed – Create Product Feeds For 40+ Merchants: by ExportFeed.com – 3.1.7.7
WC Exporter for Danea: by ilGhera – 0.9.3
Woo Import Export: by VJInfotech – 1.0
WooCommerce All in One Currency Converter: by Dev49.net – 2.8
WooCommerce Export Customer Email: by MH Mithu – 1.3
WooCommerce AdWords Conversion Tracking: by Wolf+B?r GmbH – 1.3.5
WooCommerce Google Analytics Integration: by WooThemes – 1.4.0
WooCommerce AdWords Dynamic Remarketing: by Wolf + B?r GmbH – 1.3.3
WooCommerce Sales By Location Report: by ChuckMac Development – 1.3.1
WooCommerce: by Automattic – 3.0.0
WP Customer Reviews: by Go Web Solutions – 3.1.2
Login reCAPTCHA: by Xrvel – 2.0.4
WP-Optimize: by David Anderson
Ruhani Rabin
Team Updraft – 2.1.1

Share Buttons & tools to grow traffic by GetSocial.io: by Getsocial
S.A. – 4.0

WP-SpamShield: by Scott Allen – 1.9.9.9.5
WP Super Cache: by Automattic – 1.4.9
WPFront Notification Bar: by Syam Mohan – 1.7
Better RSS Feeds: by Waterloo Plugins – 1.1.0

### Settings ###

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

### WC Pages ###

Shop base: #17 – /products/
Cart: #18 – /cart/
Checkout: #19 – /checkout/
My account: ? Page not set

### Theme ###

Name: Clearly Child
Version: 1.0.0
Author URL: https://www.rishichavda.com
Child Theme: ?
Parent Theme Name: Clearly
Parent Theme Version: 1.1
Parent Theme Author URL: https://siteorigin.com/
WooCommerce Support: ? Not declared

### Templates ###

Overrides: clearly-child/woocommerce/loop/orderby.php
clearly-child/woocommerce/single-product/add-to-cart/grouped.php
clearly-child/woocommerce/single-product/price.php version 2.4.9 is out of date. The core version is 3.0.0
clearly-child/woocommerce/single-product.php

Outdated Templates: ?Learn how to update

### Jilt ###

Plugin Version: 1.0.7
API Version: v1
API Connected: Connected
Linked to Jilt: Linked
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