"You are trying to load a table of an unknown type. Probably you did not activate the addon which is required to use this table type."
This error usually means that the free (Lite) version of wpDataTables is currently active/installed on your site, but your table was created using a Premium feature or an add-on — which is not available in the Lite version.
Uninstall the Lite version from your WordPress site.
Download the Premium version from your TMS Store account.
Install and activate the Premium version.
Follow this step-by-step guide to do it safely:
Upgrading from wpDataTables Lite to the Premium version
If your table uses any add-ons (like Master-Detail, Powerful Filters, etc.), make sure they are installed, activated, and compatible with your current wpDataTables version.
We recommend always keeping both the main plugin and all add-ons up to date.
You can always double-check the latest version on our ChangeLog and subscribe to our newsletter to stay informed about updates and new features.