Thanks for the quick reply.
All my plugins are 100% up to date.
The problem started immediately after updating the quick view plugin from 1.3.9 tot 1.3.10.
The only other two Yith plugins I use are:
YITH WooCommerce Ajax Product Filter Premium – 3.5.0
YITH WooCommerce Wishlist – 2.2.10
Thanks a million!
Ok, i’ll send an email in the future.