dunarr

Since the plugin doesn’t look really active, for those who encounter the same error, here is how to patch the error by editing the plugin files (that’s not clean, but the only solution until there is an update):
in those files:

• includes/templates/packing-slip/simple/minimal/body.php (Line 111)
• includes/abstracts/abstract-invoice.php (Line 445)

Replace

do_action( 'woocommerce_order_item_meta_end', $item_id, $item, $this->order );

by

do_action( 'woocommerce_order_item_meta_end', $item_id, $item, $this->order,  false );