Fatal error: WPO\WC\PDF_Invoices\Documents\Order_Document::get_header_logo_id(): Return value must be of type int, null returned/srv/http/example.com/wp-content/plugins/woocommerce-pdf-invoices-packing-slips/includes/documents/abstract-wcpdf-order-document.php (830)
#0 /srv/http/example.com/wp-content/plugins/woocommerce-pdf-invoices-packing-slips/includes/documents/abstract-wcpdf-order-document.php(848): WPO\WC\PDF_Invoices\Documents\Order_Document->get_header_logo_id()
#1 /srv/http/example.com/wp-content/plugins/woocommerce-pdf-ips-templates/templates/Simple Premium/packing-slip.php(11): WPO\WC\PDF_Invoices\Documents\Order_Document->header_logo()
#2 /srv/http/example.com/wp-content/plugins/woocommerce-pdf-invoices-packing-slips/includes/documents/abstract-wcpdf-order-document.php(1217): include('...')
#3 /srv/http/example.com/wp-content/plugins/woocommerce-pdf-invoices-packing-slips/includes/documents/abstract-wcpdf-order-document.php(1073): WPO\WC\PDF_Invoices\Documents\Order_Document->render_template()
#4 /srv/http/example.com/wp-content/plugins/woocommerce-pdf-invoices-packing-slips/includes/documents/abstract-wcpdf-order-document.php(1030): WPO\WC\PDF_Invoices\Documents\Order_Document->get_html()
#5 /srv/http/example.com/wp-content/plugins/woocommerce-pdf-invoices-packing-slips/includes/documents/abstract-wcpdf-order-document.php(1097): WPO\WC\PDF_Invoices\Documents\Order_Document->get_pdf()
#6 /srv/http/example.com/wp-content/plugins/woocommerce-pdf-invoices-packing-slips/includes/class-wcpdf-main.php(568): WPO\WC\PDF_Invoices\Documents\Order_Document->output_pdf()
#7 /srv/http/example.com/wp-includes/class-wp-hook.php(324): WPO\WC\PDF_Invoices\Main->generate_document_ajax()
#8 /srv/http/example.com/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters()
#9 /srv/http/example.com/wp-includes/plugin.php(517): WP_Hook->do_action()
#10 /srv/http/example.com/wp-admin/admin-ajax.php(192): do_action()
#11 {main}
I have downgraded to 3.8.4 in order to be able to download delivery order in PDF format.
Could you fix 3.8.5 and release 3.8.6? Thanks