We have discovered a conflict between Smart Crawl and Woocommerce. It has been confirmed by wooninjas. I am wonder how to report it so that it can fixed in a future release. The conflict prevents us from emptying our trash and/or removing variations from variable products when Smart Crawl is activated. It throws a 500 error. When Smart Crawl is deactivated, trash can be deleted and variations can be removed from products.