The WooCommerce 3.0 update broke some of the layouts used with the injector plugins. The injector plugins have now been updated and everything should be fine. You should get an update notification for the plugins in your dashboard so please update them and see if this rectifies the issue before submitting a support request.

If you are not receiving update notifications you may not have the license keys which were added in Fleur version 1.1. to enable automatic updates (the plugins work fine without the keys but will you will not receive update notifications). 

Log into or the marketplace where you purchased Fleur and download the latest version. Once unzipped you will see a file containing the license keys. You need to add these to the settings in all 5 injector plugins.

If your issue is not resolved with the updated plugins please refer to this article on how to get support.