Stock levels not reducing!!! Getting Desperate

https://www.driphacks.com

System Report:

### WordPress Environment ###

Home URL: https://driphacks.com
Site URL: https://driphacks.com
WC Version: 2.6.13
Log Directory Writable: ?
WP Version: 4.7.2
WP Multisite: –
WP Memory Limit: 512 MB
WP Debug Mode: –
WP Cron: ?
Language: en_GB

### Server Environment ###

Server Info: Apache
PHP Version: 5.6.27
PHP Post Max Size: 100 MB
PHP Time Limit: 300
PHP Max Input Vars: 4000
cURL Version: 7.45.0
OpenSSL/1.0.1e

SUHOSIN Installed: –
MySQL Version: 5.6.32
Max Upload Size: 100 MB
Default Timezone is UTC: ?
fsockopen/cURL: ?
SoapClient: ?
DOMDocument: ?
GZip: ?
Multibyte String: ?
Remote Post: ?
Remote Get: ?

### Database ###

WC Database Version: 2.6.13
: 
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: ?

### Active Plugins (23) ###

Advanced CSS Editor: by Hardeep Asrani – 3.0
Akismet: by Automattic – 3.2
Contact Form 7: by Takayuki Miyoshi – 4.6.1
Custom My Account for Woocommerce: by phoeniixx – 1.2.3
Instagram Feed: by Smash Balloon – 1.4.8
Instock Email Alert for Woocommerce: by Laszlo Kruchio – 1.1.2
Jetpack by WordPress.com: by Automattic – 4.5
Min and Max Quantity for WooCommerce: by BeRocket – 1.0.2
Postman SMTP: by Jason Hendriks – 1.7.2
Simple Custom CSS: by John Regan
Danny Van Kooten – 3.3

Compress JPEG & PNG images: by TinyPNG – 2.1.0
Unite Gallery Lite: by Valiano – 1.7.40
Visual Form Builder: by Matthew Muro – 2.9.2
Advanced Flat Rate Shipping Method WooCommerce: by Multidots – 2.3
WooCommerce Print Invoice & Delivery Note: by Triggvy Gunderson – 4.1.5
WooCommerce DYMO Print: by WP Fortune – 2.5.5
WooCommerce Product Add-on: by Najeeb Ahmad – 2.5
WooCommerce: by WooThemes – 2.6.13
WooSidebars: by WooThemes – 1.4.3
WooCommerce Helper: by WooCommerce – 1.7.2
WP Simple Paypal Shopping cart: by Tips and Tricks HQ
Ruhul Amin
mra13 – 4.2.9

WP-Mail-SMTP: by Callum Macdonald – 0.10.1
WPtouch Pro: by BraveNewCode Inc. – 4.3.3

### Settings ###

Force SSL: –
Currency: GBP (￡)
Currency Position: left
Thousand Separator: ,
Decimal Separator: .
Number of Decimals: 2

### API ###

API Enabled: ?

### WC Pages ###

Shop Base: ? Page ID is set
but the page does not exist

Basket: #54 - /your-cart/
Checkout: #74 - /checkout/
My Account: #75 - /my-account/

### Taxonomies ###

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

### Theme ###

Name: Relia
Version: 1.0.7
Author URL: https://smartcatdesign.net
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: relia/woocommerce/archive-product.php
relia/woocommerce/single-product.php

HI all, I am having a meltdown as for some reason woo commerce isn’t reducing stock. This is causing a major headache as it means we are having to manually take products out of stock (multiple variations each) and we are selling things we don’t have.

Stock is controlled at variation level “manage stock” and “do not allow backorders” are selected. I have disabled all other plugins to no avail. I have absolutely no idea what is causing this and am at a loss as to what to do. If anyone could help I would be very grateful, my business is in danger.

Thanks all.