Tax not Working after 3.0.4. update

Hi,
This is my first cry for help with a problem that seems to have occurred after the 3.0.3 or 3.0.4 update. All products in the shop are entered including 10% GST for Australia but as soon as I or the Shop Manager log out and check the front end of the site, the prices are showing without GST. Whilst logged in and previewing the page the prices show correctly. On putting items into a cart and going to the checkout page, the GST is showing correctly in the totals. I have been back over all the settings which haven’t changed. I have also logged a support ticket with Theme Fusion in case it is Avada that is causing the problem. I really need to get this sorted urgently as the site was only just launched and I have had to put it in maintenance mode until this is fixed. Any help would be much appreciated.
Thanks.
Annette
Bypass address is https://loveoilcollection.com.au/client-715/

### WordPress Environment ###

Home URL: https://loveoilcollection.com.au
Site URL: https://loveoilcollection.com.au
WC Version: 3.0.4
Log Directory Writable:
WP Version: 4.7.4
WP Multisite: –
WP Memory Limit: 256 MB
WP Debug Mode: –
WP Cron:
Language: en

### Server Environment ###

Server Info: LiteSpeed
PHP Version: 5.6.30
PHP Post Max Size: 32 MB
PHP Time Limit: 300
PHP Max Input Vars: 5000
cURL Version: 7.36.0
OpenSSL/1.0.1e

SUHOSIN Installed: –
Max Upload Size: 32 MB
Default Timezone is UTC:
fsockopen/cURL:
SoapClient:
DOMDocument:
GZip:
Multibyte String:
Remote Post:
Remote Get:

### Database ###

WC Database Version: 3.0.4
WC Database Prefix: wp_
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:

### Security ###

Secure connection (HTTPS):
Hide errors from visitors:

### Active Plugins (22) ###

Extension Works Framework: by Extension Works – 2.1.4
WooCommerce Australia Post: by Extension Works – 1.8
WooCommerce FastWay(AU): by Extension Works – 1.6.10
BackupBuddy: by iThemes – 7.3.1.0
Contact Form 7: by Takayuki Miyoshi – 4.7
Fusion Builder: by ThemeFusion – 1.1.6
Fusion Core: by ThemeFusion – 3.1.6
Heartbeat Control: by Jeff Matson – 1.0.3
Jetpack – Use Old Connection Flow: by Brandon Kraft – 1.0
Jetpack by WordPress.com: by Automattic – 4.8.2
MailChimp for WooCommerce: by MailChimp – 2.0.0
P3 (Plugin Performance Profiler): by GoDaddy.com – 1.5.3.9
Regenerate Thumbnails: by Alex Mills (Viper007Bond) – 2.2.6
Slider Revolution: by ThemePunch – 5.4.2
SeedProd Coming Soon Page Pro: by SeedProd – 5.5.8
Shortcode Pagination for WooCommerce: by James Kemp – 1.0.6
WooCommerce – Store Exporter: by Visser Labs – 1.8.8
WooCommerce: by Automattic – 3.0.4
Wordfence Security: by Wordfence – 6.3.7
Yoast SEO: by Team Yoast – 4.6
WP Store Locator: by Tijmen Smit – 2.2.7
WP Super Cache: by Automattic – 1.4.9

### Settings ###

API Enabled:
Force SSL:
Currency: AUD ($)
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: #16557 – /products2/
Cart: #14 – /cart/
Checkout: #16586 – /checkout-2/
My account: #16576 – /my-account-2/

### 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

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