Default variation is not set by default

In my site stilolinea ingeo kuglepen i bioplast med tryk you can notice the default variation is not set as selected for the product. Can you please give me some idea how, I can debug this. In a separate local installation, I disabled all plugins and changed the theme to child theme, still the error persist. And also created another site and installed all the plugins used in live site one by one with the parent theme having no such issue. One difference is default language for local installation 2 is “English” and all data are demo data, where as for the copy of live site data is real data which is in live site and default language is “Danish”, which should not be a problem, any way what ever information or idea you can give me will be helpful in current situation, thank you for looking into it.

System Status

WordPress environment
Home URL :: http://grontkontor.dk
Website URL: http://grontkontor.dk
WooCommerce version: 3.1.2
Log Folder Writable: /…/wc-logs/
WordPress version: 4.8.1
WordPress multiwebsite: –
WordPress memory limit: 512 MB
WordPress debug mode: –
WP Cron:
Language: en_US
Server environment
Server info: Apache / 2.4.7
PHP version: 5.5.9-1ubuntu4.22 – We recommend minimum PHP version 5.6. See: How to update your PHP version
PHP post max size: 20 MB
PHP time limit: 0
PHP Max Input Fresh: 1000
cURL version: 7.35.0, OpenSSL / 1.0.1f
SUHOSIN installed: –
MySQL version: 5.5.57 – We recommend using minimum MySQL version 5.6. See: WordPress requirements
Max Upload Size: 20 MB
Default time zone is UTC:
Fsockopen / Curl:
Soap Client:
DOMDocument:
GZip:
Multibyte string:
Remove Post:
Remote Get:
Directory
WooCommerce Database Version: 3.0.8
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
MaxMind GeoIP database: ../wp-content/uploads/GeoIP.dat
Security
Secure connection (HTTPS): Your shop is not using HTTPS. Learn more about HTTPS and SSL Certificates .
Hide errors for guests
Active extensions (plugins) (46)
backup Buddy by iThemes – 8.0.1.11
Advanced Custom Fields PRO by Elliot Condon – 5.6.1
Akismet Anti-Spam by Automattic – 3.3.4
All-in-One WP Migration of ServMask – 6.56
Constant Contact Forms for WordPress by Constant Contact – 1.3.4
CSS3 Responsive Web Pricing Tables Grids of QuanticaLabs – 10.8
WooCommerce Single Product Page Builder by SiteSao Team – 3.0.8
Display Widgets of the display widget – 2.6.3.1
Duplicator by Snap Creek – 1.2.22
Easy WordPress Cookies Popup by Tweak Digital – 1.5.1
Envato Market by Derek Herman – 1.0.0-RC2
Envato WordPress Toolkit by Envato – 1.7.3
Essential Grid by ThemePunch – 2.1.0.2
Green Volcano Validation by Benjamin Christensen – 1.0.0
iThemes Sync of iThemes – 2.0.2
WooCommerce Quickview of Iconic – 3.4.4
MPC Mega Menu by Lee Chestnutt | Modified by MPC Team – 1.6
WPBakery Visual Composer by Michael M – WPBakery.com – 5.1.1
Loco Translate by Tim Whitlock – 2.0.15
MailChimp for WordPress of ibericode – 4.1.8
MPC Extensions by MassivePixelCreation – 3.9.3
MPC Shortcodes by MassivePixelCreation – 3.8.2
MPC Widgets by MassivePixelCreation – 3.9
Regenerate Thumbnails by Alex Mills (Viper007Bond) – 2.2.6
WPML Multilingual CMS by OnTheGoSystems – 3.8.0
WooCommerce Dynamic Pricing & Discounts by RightPress – 100.1.2 WP Kraken Job # s598463 remove first $ date_table default column
WooCommerce Weight Based Shipping by weightbasedshipping.com – 5.1.3
WooCommerce Checkout Manager by Visser Labs – 4.1.5
WooCommerce ePay Payment Solutions Gateway of ePay – 2.5
WooCommerce Import by WPShowCase – 1.17
WooCommerce Multilingual by OnTheGoSystems – 4.2.3
WooCommerce PDF Invoice by RightPress – 3.1.6
WooCommerce Simply Order Export by Ankit Street – 2.1.9
WooCommerce Suppliers by agenciamagma, Carlos Cardoso Dias – 0.0.1
WooCommerce TM Additional Product Options of themecomplete – 4.6.1
WooCommerce by Automattic – 3.1.2
WooSidebars by WooThemes – 1.4.3
WP Log Viewer by Maxwell Berkel – 1.2.1
WP Maintenance Mode of Design Modo – 2.0.9
WP-Memory Usage by Alex Rabe – 1.2.2
WP Smush of WPMU DEV – 2.7.4.1
WP Super Cache by Automattic – 1.5.5
WPML Media by OnTheGoSystems – 2.2.1
WPML String Translation by OnTheGoSystems – 2.6.0
WPML Translation Management by OnTheGoSystems – 2.4.0
YITH WooCommerce Wishlist by YITHEMES – 2.1.2
Settings
API enabled:
Thread SSL: –
currency DKK (DKK)
currency Position left_space
Tusindeseparator .
Decimal .
The number of decimals 2
Taxonomies: Product types external (grouped), simple (simple), variable (variable)
Taxonomics: Product visibility excluded-from-catalog, excluded-from-search, featured (featured), outofstock (outofstock), rated-1 (rated-1), rated-2 -2), rated-3 (rated-3), rated-4 (rated-4), rated-5 (rated-5)
WooCommerce pages
Shop basic page : # 3118 – / shop /
Basket : # 3914 – / Basket /
Checkout : # 8 – / box /
My account : # 9 – / min account /
Theme
Name: Blaszok Child
Version: 1.1
Author URL: http://mpcreation.net
Child theme (children’s theme / subtitles):
Parent theme name (main theme): Blaszok
Parent theme version: 3.9.3
URL for the main theme (parent theme) author: http://mpcreation.net
WooCommerce support:
templates
slights blaszok / woocommerce / archive-product.php,
blaszok/woocommerce/cart/cart-empty.phpversion 2.0.0 has been deleted. The core version is 3.1.0,
blaszok/woocommerce/cart/cart-shipping.phpversion 2.5.0 has been deleted. The core version is 3.1.0,
blaszok / woocommerce / cart / cart-totals.php,
blaszok/woocommerce/cart/cart.phpversion 3.0.3 has been deleted. The core version is 3.1.0,
blaszok / woocommerce / cart / cross-sells.php,
blaszok/woocommerce/cart/mini-cart.phpversion 2.5.0 has been deleted. The core version is 3.1.0,
blaszok / woocommerce / cart / shipping-calculator.php,
blaszok/woocommerce/checkout/form-billing.phpversion 3.0.0 has been deleted. The core version is 3.0.9,
blaszok / woocommerce / checkout / form-checkout.php,
blaszok/woocommerce/checkout/form-shipping.phpversion 3.0.0 has been deleted. The core version is 3.0.9,
blaszok-child/content-product.phpversion2.5.0 has been deleted. The core version is 3.0.0,
blaszok-child/content-product_cat.phpversion 2.5.2 has been deleted. The core version is 2.6.1,
blaszok-child/content-single-product.phpversion 1.6.4 is deleted. Core versions are 3.0.0,
blaszok / woocommerce / loop / add-to-cart.php,
blasokok / woocommerce / loop / loop-end.php,
blasokok / woocommerce / loop / loop-start.php,
blasokok / woocommerce / loop / no-products-found.php,
blasokok / woocommerce / loop / pagination.php,
blasokok / woocommerce / loop / result-count.php,
blasokok / woocommerce / loop / sale-flash.php,
blasokok / woocommerce / myaccount / form- add-payment-method.php,
blaszok/woocommerce/myaccount/form-edit-address.phpversion 3.0.0 has been deleted. The core version is 3.0.9,
blaszok / woocommerce / myaccount / form-login.php,
blasokok / woocommerce / myaccount / my-address.php,
blasokok / woocommerce / myaccount / my-orders.php,
blasokok / woocommerce / notices / error.php,
blasokok / woocommerce / notices / notice.php,
blasokok / woocommerce / notices / success.php,
blasokok / woocommerce / order / order-details.php,
blasokok / woocommerce / order / tracking.php,
blasokok / product-searchform.php,
blasokok / woocommerce / single-product / meta.php,
blaszok-child/woocommerce/single-product/price.phpversion 2.4.9 has been discontinued. The core version is 3.0.0,
blaszok/woocommerce/single-product/product-image.phpversion 3.0.2 has been deleted. The core version is 3.1.0,
blaszok/woocommerce/single-product/product-thumbnails.phpversion 3.0.2 has been deleted. The core version is 3.1.0,
blaszok / woocommerce / single-product / related.php,
blaszok / woocommerce / single-product / review.php,
blasokok / woocommerce / single-product / sale-flash.php,
blasokok / woocommerce / single-product / tabs / additional-information.php,
blasokok / woocommerce / single-product / tabs / description.php,
blasokok / woocommerce / single-product / tabs / tabs.php,
blasokok / woocommerce / single-product / up-sells.php,
blasokok / woocommerce / single-product-reviews.php
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