400 Bad Request when attempting to connect to Facebook

As with other topics with the same subject. I have the same problem with the same presentation as others. Showing you the same video will add no further value.

In the popup

Connect to WooCommerce Integration

Connect WooCommerce Integration to Facebook

upon clicking on “Connect” I am presented with ‘400 Bad Request’ error from this URL: 400 Bad Request (woocommerce.com)

1. There are no logs since the error is not in my domain
2. I have adblock disables so my client is not actively blocking any JS execution
3 I have nothing else to tell you, so please ask for information that would be meaningful to you, but not obvious to me.
4. All plugins are up to date

The page I need help with: [log in to see the link]