Correction to the above – We’ve been using the “Advanced Shipping” plugin and not the “Advanced free shipping” so the problem occurs on the “Advanced Shipping” plugin.
Thanks Jeroen for the great plugin. We’ve been using it for a few years now 🙂
I did have a problem when trying to update our site to PHP 7.4 (anything over PHP 7.0 produced an error message from the plugin).
Is it a local problem? Which PHP version have you tested to work with the current version of the plugin?