Update: 01-02-2018:
Version 2.8.0 has been released earlier and is fully compatible with WooCommerce 3.3
Perfect SEO URL is aware of the breaking change in WooCommerce 3.3
Do not update WooCommerce to version 3.3 before Perfect SEO URL has released the newest version of this plugin.
Scheduled update:
There will be a major update released of the Perfect SEO URL plugin at 2th of February 2018 that is compatible with WooCommerce 3.3