The plugin used to work fine, but recently it has failed to download pdf invoices. The system keeps loading and loading with no results. I also get a critical error when doing a preview.
This is the order log:
[Fri Oct 13 15:58:48.747075 2023] [proxy_fcgi:error] [pid 3475975:tid 140584896722688] [remote 88.159.177.113:59638] AH01071: Got error ‘PHP message: PHP Fatal error: Uncaught TypeError: method_exists(): Argument #1 ($object_or_class) must be of type object|string, null given in /home/menoelle/domains/menoelle.nl/public_html/wp-content/plugins/woo-pdf-invoice-builder-pro/htmlgenerator/OrderValueRetriever.php:43\nStack trace:\n#0 /home/menoelle/domains/menoelle.nl/public_html/wp-content/plugins/woo-pdf-invoice-builder-pro/htmlgenerator/OrderValueRetriever.php(43): method_exists()\n#1 /home/menoelle/domains/menoelle.nl/public_html/wp-content/plugins/woo-pdf-invoice-builder-pro/PDFGenerator.php(270): rnwcinv\\htmlgenerator\\OrderValueRetriever->GetId()\n#2 /home/menoelle/domains/menoelle.nl/public_html/wp-content/plugins/woo-pdf-invoice-builder-pro/PDFGenerator.php(313): RednaoPDFGenerator->GetOrderId()\n#3 /home/menoelle/domains/menoelle.nl/public_html/wp-content/plugins/woo-pdf-invoice-builder-pro/PDFGenerator.php(274): RednaoPDFGenerator->Generate()\n#4 /home/menoelle/domains/menoelle.nl/public_html/wp-content/plugins/woo-pdf-invoice-buil…’, referer:
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