Hello @nielslange ??
I did the test and even with all plugins disabled the problems persist. The theme also doesn’t have any issue.
I also setup a staging site for the debug process. The updated links are:
https://eshop.contramarket.gr/dev-contra/?product_cat=dressing
https://eshop.contramarket.gr/dev-contra/?product=adoro-creamy-gouda-fratzola
https://eshop.contramarket.gr/dev-contra/?product=regato-kerrygold-pop
The theme we use is Astra (we have a child theme for some minor php scripts in functions.php). The plugins that are active in the staging site are:
Advanced Product Fields for WooCommerce
Version 1.4.0 | By StudioWombat | View details
All in One Product Quantity for WooCommerce Pro
Version 3.8.2 | By WPWhale | Visit plugin site
Elementor
Version 3.4.3 | By Elementor.com | View details | Docs & FAQs | Video Tutorials
Elementor Pro
Version 3.3.7 | By Elementor.com | Visit plugin site | View details | Changelog
Essential Addons for Elementor
Version 4.8.4 | By WPDeveloper | View details | Docs & FAQs | Video Tutorials
Meks Quick Plugin Disabler
Version 1.0 | By Meks | View details
SMNTCS Quantity Increment Buttons for WooCommerce
Version 1.25 | By Niels Lange | View details
WooCommerce
Version 5.6.0 | By Automattic | View details | Docs | API docs | Community support
If you can check it we would really appreciate it. Thank you again for your time.