WooCommerce PDF Catalog Error Troubleshooting

I have a WooCommerce website with the PDF Catalog plugin installed and activated. However, when attempting to generate a PDF catalog, I'm faced with an error message. This issue has occurred recently after both the plugin and WordPress were updated.

Key Requirements:
- Troubleshoot and resolve the error message that appears when generating the PDF catalog
- Identify and address potential conflicts arising from recent updates to the plugin and WordPress

Ideal Skills and Experience:
- Proficient in WooCommerce and WordPress
- Experience in troubleshooting and resolving plugin-related issues
- Solid understanding of generating PDFs from WooCommerce products
- Familiarity with recent updates and potential conflicts that may arise from them

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I have issue with my pdf catalogue plugin. i just activated it. https://www.qualityinverters.co.za/wp-admin/admin.php?page=woocommerce_pdf_catalog_options_options I cannot generate pdf: https://www.qualityinverters.co.za/catalogue-generator/

Please test it.