PDF invoices admin email are missing

Hi,

Since the last update the invoices in the admin emails are missing.
We do use WooCommerce PDF Invoices & Packing Slips 2.8.2 and
WooCommerce PDF Invoices & Packing Slips Professional 2.7.3
Wordpress Version 5.6.1, PHP 7.3

Please check this link https://www.wallcatcher.com/wp-content/themes/shoptimizer-child/img/settings-pdf.jpg for the settings we use.

Hope you can check what is going wrong.
Thank you in advance.

Your sincerely,

Roland

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