Brian

@babylon1999 Problems seem to be resolved with the latest WC update! So I’m marking this one as resolved.

@nobbrat What does this question have to do with mine?

For anyone wondering, this was the solution:

This issue is happening because in the last release we deleted legacy code that we were maintaining for years. Currently, the global variable $wpo_wcpdf no longer exists, that is why the error is generated.

However, you can follow these steps to fix this issue:

1. Replace the whole code of the html-document-wrapper.php file with the current one you will find here.
2. Open the invoice.php file, and do the following:
   1. Replace the first like with this one:
      <?php if ( ! defined( 'ABSPATH' ) ) exit; // Exit if accessed directly ?>
   2. Replace every concurrence of $wpo_wcpdf with $this
   3. Replace every concurrence of 'wpo_wcpdf' with 'woocommerce-pdf-invoices-packing-slips': This is the text domain which is needed in order for translations to work.
3. If need it, repeat the steps of the 2nd point for the packing slip too.

Sorry for posting, I already contacted them through email and got an immediate answer!

Bumping this as I also would love to see the named dates implemented!