Thanks for your help, when checking the plugins it appears that Swatchly – Variation Swatches for WooCommerce Products are causing the .problems. This now deactivated and admin side works properly again. now looking for a plugin that works the same and does not cause these problems.
I also have the free version and want to hide the VAT due to an arrangement. Where do I add the code?
add_action( 'wpo_wcpdf_custom_styles', 'wpo_wcpdf_hide_via_shipping', 10, 2 );
function wpo_wcpdf_hide_via_shipping ( $document_type, $document ) {
?>
.shipped_via {
display: none;
}
<?php
