To WPLab Support,
We experienced this exact same issue. You have not updated your plugin for months now, and you have left people with a broken WooCommerce-eBay system.
The issue was caused by eBay officially decommissioning the old Trading API GetCategories() endpoint in April 2026 – something they will have made public for months and months, and yet WPLab took no action to update.
WP-Lister still relies entirely on this legacy SOAP/XML API for downloading eBay category trees. Once eBay disabled it, category refreshes have been failing and the wp_ebay_categories table remains flushed and empty.
The plugin is throwing misleading XML parser errors because the old SDK can no longer handle the API response after decommissioning.
We fixed it by patching:
/classes/model/EbayCategoriesModel.php
I doubt I can post the full fix here but I am happy to share it if anybody wants it – including you WPLab! Yes, I fixed your broken plugin for you 😉
